* [PATCH] staging: exfat: cleanup explicit comparisons to NULL
@ 2019-09-03 17:13 Valentin Vidic
2019-09-03 20:09 ` Greg Kroah-Hartman
0 siblings, 1 reply; 3+ messages in thread
From: Valentin Vidic @ 2019-09-03 17:13 UTC (permalink / raw)
To: Valdis Kletnieks; +Cc: Greg Kroah-Hartman, devel, linux-kernel, Valentin Vidic
Fixes checkpatch.pl warnings:
CHECK: Comparison to NULL could be written "expr"
CHECK: Comparison to NULL could be written "!expr"
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
---
drivers/staging/exfat/exfat_core.c | 34 ++++++++---------
drivers/staging/exfat/exfat_super.c | 58 ++++++++++++++---------------
2 files changed, 46 insertions(+), 46 deletions(-)
diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
index 46b9f4455da1..7b39544cdaf1 100644
--- a/drivers/staging/exfat/exfat_core.c
+++ b/drivers/staging/exfat/exfat_core.c
@@ -100,7 +100,7 @@ void fs_set_vol_flags(struct super_block *sb, u32 new_flag)
p_fs->vol_flag = new_flag;
if (p_fs->vol_type == EXFAT) {
- if (p_fs->pbr_bh == NULL) {
+ if (!p_fs->pbr_bh) {
if (sector_read(sb, p_fs->PBR_sector,
&p_fs->pbr_bh, 1) != FFS_SUCCESS)
return;
@@ -543,7 +543,7 @@ s32 load_alloc_bitmap(struct super_block *sb)
p_fs->vol_amap = kmalloc_array(p_fs->map_sectors,
sizeof(struct buffer_head *),
GFP_KERNEL);
- if (p_fs->vol_amap == NULL)
+ if (!p_fs->vol_amap)
return FFS_MEMORYERR;
sector = START_SECTOR(p_fs->map_clu);
@@ -685,7 +685,7 @@ void sync_alloc_bitmap(struct super_block *sb)
int i;
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
- if (p_fs->vol_amap == NULL)
+ if (!p_fs->vol_amap)
return;
for (i = 0; i < p_fs->map_sectors; i++)
@@ -714,7 +714,7 @@ static s32 __load_upcase_table(struct super_block *sb, sector_t sector,
upcase_table = p_fs->vol_utbl = kmalloc(UTBL_COL_COUNT * sizeof(u16 *),
GFP_KERNEL);
- if (upcase_table == NULL)
+ if (!upcase_table)
return FFS_MEMORYERR;
memset(upcase_table, 0, UTBL_COL_COUNT * sizeof(u16 *));
@@ -750,11 +750,11 @@ static s32 __load_upcase_table(struct super_block *sb, sector_t sector,
else { /* uni != index , uni != 0xFFFF */
u16 col_index = get_col_index(index);
- if (upcase_table[col_index] == NULL) {
+ if (!upcase_table[col_index]) {
pr_debug("alloc = 0x%X\n", col_index);
upcase_table[col_index] = kmalloc_array(UTBL_ROW_COUNT,
sizeof(u16), GFP_KERNEL);
- if (upcase_table[col_index] == NULL) {
+ if (!upcase_table[col_index]) {
ret = FFS_MEMORYERR;
goto error;
}
@@ -794,7 +794,7 @@ static s32 __load_default_upcase_table(struct super_block *sb)
upcase_table = p_fs->vol_utbl = kmalloc(UTBL_COL_COUNT * sizeof(u16 *),
GFP_KERNEL);
- if (upcase_table == NULL)
+ if (!upcase_table)
return FFS_MEMORYERR;
memset(upcase_table, 0, UTBL_COL_COUNT * sizeof(u16 *));
@@ -812,12 +812,12 @@ static s32 __load_default_upcase_table(struct super_block *sb)
else { /* uni != index , uni != 0xFFFF */
u16 col_index = get_col_index(index);
- if (upcase_table[col_index] == NULL) {
+ if (!upcase_table[col_index]) {
pr_debug("alloc = 0x%X\n", col_index);
upcase_table[col_index] = kmalloc_array(UTBL_ROW_COUNT,
sizeof(u16),
GFP_KERNEL);
- if (upcase_table[col_index] == NULL) {
+ if (!upcase_table[col_index]) {
ret = FFS_MEMORYERR;
goto error;
}
@@ -1640,7 +1640,7 @@ struct dentry_t *get_entry_with_sector(struct super_block *sb, sector_t sector,
buf = buf_getblk(sb, sector);
- if (buf == NULL)
+ if (!buf)
return NULL;
return (struct dentry_t *)(buf + offset);
@@ -1658,10 +1658,10 @@ struct dentry_t *get_entry_in_dir(struct super_block *sb, struct chain_t *p_dir,
buf = buf_getblk(sb, sec);
- if (buf == NULL)
+ if (!buf)
return NULL;
- if (sector != NULL)
+ if (sector)
*sector = sec;
return (struct dentry_t *)(buf + off);
}
@@ -1721,7 +1721,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
sec += START_SECTOR(clu);
buf = buf_getblk(sb, sec);
- if (buf == NULL)
+ if (!buf)
goto err_out;
ep = (struct dentry_t *)(buf + off);
@@ -1741,7 +1741,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
pr_debug("%s: trying to kmalloc %zx bytes for %d entries\n", __func__,
bufsize, num_entries);
es = kmalloc(bufsize, GFP_KERNEL);
- if (es == NULL)
+ if (!es)
goto err_out;
es->num_entries = num_entries;
@@ -1820,7 +1820,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
sec++;
}
buf = buf_getblk(sb, sec);
- if (buf == NULL)
+ if (!buf)
goto err_out;
off = 0;
ep = (struct dentry_t *)(buf);
@@ -1872,7 +1872,7 @@ static s32 __write_partial_entries_in_entry_set(struct super_block *sb,
remaining_byte_in_sector >> DENTRY_SIZE_BITS,
num_entries);
buf = buf_getblk(sb, sec);
- if (buf == NULL)
+ if (!buf)
goto err_out;
pr_debug("es->buf %p buf_off %u\n", esbuf, buf_off);
pr_debug("copying %d entries from %p to sector %llu\n",
@@ -2649,7 +2649,7 @@ void exfat_get_uni_name_from_ext_entry(struct super_block *sb,
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
es = get_entry_set_in_dir(sb, p_dir, entry, ES_ALL_ENTRIES, &ep);
- if (es == NULL || es->num_entries < 3) {
+ if (!es || es->num_entries < 3) {
if (es)
release_entry_set(es);
return;
diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
index 881cd85cf677..8d93403a3308 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -341,7 +341,7 @@ static int exfat_cmpi(const struct dentry *dentry, unsigned int len,
alen = exfat_striptail_len(name);
blen = __exfat_striptail_len(len, str);
if (alen == blen) {
- if (t == NULL) {
+ if (!t) {
if (strncasecmp(name->name, str, alen) == 0)
return 0;
} else if (nls_strnicmp(t, name->name, str, alen) == 0)
@@ -587,7 +587,7 @@ static int ffsGetVolInfo(struct super_block *sb, struct vol_info_t *info)
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
/* check the validity of pointer parameters */
- if (info == NULL)
+ if (!info)
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -650,7 +650,7 @@ static int ffsLookupFile(struct inode *inode, char *path, struct file_id_t *fid)
pr_debug("%s entered\n", __func__);
/* check the validity of pointer parameters */
- if ((fid == NULL) || (path == NULL) || (*path == '\0'))
+ if (!fid || !path || (*path == '\0'))
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -743,7 +743,7 @@ static int ffsCreateFile(struct inode *inode, char *path, u8 mode,
int ret;
/* check the validity of pointer parameters */
- if ((fid == NULL) || (path == NULL) || (*path == '\0'))
+ if (!fid || !path || (*path == '\0'))
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -788,11 +788,11 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
/* check the validity of pointer parameters */
- if (buffer == NULL)
+ if (!buffer)
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -811,7 +811,7 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
count = fid->size - fid->rwoffset;
if (count == 0) {
- if (rcount != NULL)
+ if (rcount)
*rcount = 0;
ret = FFS_EOF;
goto out;
@@ -885,7 +885,7 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
/* How did this ever work and not leak a brlse()?? */
err_out:
/* set the size of read bytes */
- if (rcount != NULL)
+ if (rcount)
*rcount = read_bytes;
if (p_fs->dev_ejected)
@@ -917,11 +917,11 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
/* check the validity of pointer parameters */
- if (buffer == NULL)
+ if (!buffer)
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -937,7 +937,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
fid->rwoffset = fid->size;
if (count == 0) {
- if (wcount != NULL)
+ if (wcount)
*wcount = 0;
ret = FFS_SUCCESS;
goto out;
@@ -1096,7 +1096,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL)
+ if (!es)
goto err_out;
ep2 = ep+1;
} else {
@@ -1138,7 +1138,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
err_out:
/* set the size of written bytes */
- if (wcount != NULL)
+ if (wcount)
*wcount = write_bytes;
if (num_alloced == 0)
@@ -1225,7 +1225,7 @@ static int ffsTruncateFile(struct inode *inode, u64 old_size, u64 new_size)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &fid->dir, fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1320,11 +1320,11 @@ static int ffsMoveFile(struct inode *old_parent_inode, struct file_id_t *fid,
s32 new_entry = 0;
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
/* check the validity of pointer parameters */
- if ((new_path == NULL) || (*new_path == '\0'))
+ if (!new_path || (*new_path == '\0'))
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -1441,7 +1441,7 @@ static int ffsRemoveFile(struct inode *inode, struct file_id_t *fid)
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
/* acquire the lock for file system critical section */
@@ -1529,7 +1529,7 @@ static int ffsSetAttr(struct inode *inode, u32 attr)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1645,7 +1645,7 @@ static int ffsReadStat(struct inode *inode, struct dir_entry_t *info)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
ES_2_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1769,7 +1769,7 @@ static int ffsWriteStat(struct inode *inode, struct dir_entry_t *info)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1838,7 +1838,7 @@ static int ffsMapCluster(struct inode *inode, s32 clu_offset, u32 *clu)
struct file_id_t *fid = &(EXFAT_I(inode)->fid);
/* check the validity of pointer parameters */
- if (clu == NULL)
+ if (!clu)
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -1922,7 +1922,7 @@ static int ffsMapCluster(struct inode *inode, s32 clu_offset, u32 *clu)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &fid->dir, fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1990,7 +1990,7 @@ static int ffsCreateDir(struct inode *inode, char *path, struct file_id_t *fid)
pr_debug("%s entered\n", __func__);
/* check the validity of pointer parameters */
- if ((fid == NULL) || (path == NULL) || (*path == '\0'))
+ if (!fid || !path || (*path == '\0'))
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -2036,7 +2036,7 @@ static int ffsReadDir(struct inode *inode, struct dir_entry_t *dir_entry)
struct file_id_t *fid = &(EXFAT_I(inode)->fid);
/* check the validity of pointer parameters */
- if (dir_entry == NULL)
+ if (!dir_entry)
return FFS_ERROR;
/* check if the given file ID is opened */
@@ -2227,7 +2227,7 @@ static int ffsRemoveDir(struct inode *inode, struct file_id_t *fid)
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
dir.dir = fid->dir.dir;
@@ -3115,10 +3115,10 @@ static const char *exfat_get_link(struct dentry *dentry, struct inode *inode,
{
struct exfat_inode_info *ei = EXFAT_I(inode);
- if (ei->target != NULL) {
+ if (ei->target) {
char *cookie = ei->target;
- if (cookie != NULL)
+ if (cookie)
return (char *)(ei->target);
}
return NULL;
@@ -3780,7 +3780,7 @@ static int parse_options(char *options, int silent, int *debug,
if (!options)
goto out;
- while ((p = strsep(&options, ",")) != NULL) {
+ while (p = strsep(&options, ",")) {
int token;
if (!*p)
@@ -4044,7 +4044,7 @@ static int __init exfat_init_inodecache(void)
(SLAB_RECLAIM_ACCOUNT |
SLAB_MEM_SPREAD),
init_once);
- if (exfat_inode_cachep == NULL)
+ if (!exfat_inode_cachep)
return -ENOMEM;
return 0;
}
--
2.20.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] staging: exfat: cleanup explicit comparisons to NULL
2019-09-03 17:13 [PATCH] staging: exfat: cleanup explicit comparisons to NULL Valentin Vidic
@ 2019-09-03 20:09 ` Greg Kroah-Hartman
2019-09-03 20:56 ` [PATCH v2] " Valentin Vidic
0 siblings, 1 reply; 3+ messages in thread
From: Greg Kroah-Hartman @ 2019-09-03 20:09 UTC (permalink / raw)
To: Valentin Vidic; +Cc: Valdis Kletnieks, devel, linux-kernel
On Tue, Sep 03, 2019 at 07:13:37PM +0200, Valentin Vidic wrote:
> Fixes checkpatch.pl warnings:
>
> CHECK: Comparison to NULL could be written "expr"
> CHECK: Comparison to NULL could be written "!expr"
>
> Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
> ---
> drivers/staging/exfat/exfat_core.c | 34 ++++++++---------
> drivers/staging/exfat/exfat_super.c | 58 ++++++++++++++---------------
> 2 files changed, 46 insertions(+), 46 deletions(-)
>
> diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
> index 46b9f4455da1..7b39544cdaf1 100644
> --- a/drivers/staging/exfat/exfat_core.c
> +++ b/drivers/staging/exfat/exfat_core.c
> @@ -100,7 +100,7 @@ void fs_set_vol_flags(struct super_block *sb, u32 new_flag)
> p_fs->vol_flag = new_flag;
>
> if (p_fs->vol_type == EXFAT) {
> - if (p_fs->pbr_bh == NULL) {
> + if (!p_fs->pbr_bh) {
> if (sector_read(sb, p_fs->PBR_sector,
> &p_fs->pbr_bh, 1) != FFS_SUCCESS)
> return;
> @@ -543,7 +543,7 @@ s32 load_alloc_bitmap(struct super_block *sb)
> p_fs->vol_amap = kmalloc_array(p_fs->map_sectors,
> sizeof(struct buffer_head *),
> GFP_KERNEL);
> - if (p_fs->vol_amap == NULL)
> + if (!p_fs->vol_amap)
> return FFS_MEMORYERR;
>
> sector = START_SECTOR(p_fs->map_clu);
> @@ -685,7 +685,7 @@ void sync_alloc_bitmap(struct super_block *sb)
> int i;
> struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
>
> - if (p_fs->vol_amap == NULL)
> + if (!p_fs->vol_amap)
> return;
>
> for (i = 0; i < p_fs->map_sectors; i++)
> @@ -714,7 +714,7 @@ static s32 __load_upcase_table(struct super_block *sb, sector_t sector,
>
> upcase_table = p_fs->vol_utbl = kmalloc(UTBL_COL_COUNT * sizeof(u16 *),
> GFP_KERNEL);
> - if (upcase_table == NULL)
> + if (!upcase_table)
> return FFS_MEMORYERR;
> memset(upcase_table, 0, UTBL_COL_COUNT * sizeof(u16 *));
>
> @@ -750,11 +750,11 @@ static s32 __load_upcase_table(struct super_block *sb, sector_t sector,
> else { /* uni != index , uni != 0xFFFF */
> u16 col_index = get_col_index(index);
>
> - if (upcase_table[col_index] == NULL) {
> + if (!upcase_table[col_index]) {
> pr_debug("alloc = 0x%X\n", col_index);
> upcase_table[col_index] = kmalloc_array(UTBL_ROW_COUNT,
> sizeof(u16), GFP_KERNEL);
> - if (upcase_table[col_index] == NULL) {
> + if (!upcase_table[col_index]) {
> ret = FFS_MEMORYERR;
> goto error;
> }
> @@ -794,7 +794,7 @@ static s32 __load_default_upcase_table(struct super_block *sb)
>
> upcase_table = p_fs->vol_utbl = kmalloc(UTBL_COL_COUNT * sizeof(u16 *),
> GFP_KERNEL);
> - if (upcase_table == NULL)
> + if (!upcase_table)
> return FFS_MEMORYERR;
> memset(upcase_table, 0, UTBL_COL_COUNT * sizeof(u16 *));
>
> @@ -812,12 +812,12 @@ static s32 __load_default_upcase_table(struct super_block *sb)
> else { /* uni != index , uni != 0xFFFF */
> u16 col_index = get_col_index(index);
>
> - if (upcase_table[col_index] == NULL) {
> + if (!upcase_table[col_index]) {
> pr_debug("alloc = 0x%X\n", col_index);
> upcase_table[col_index] = kmalloc_array(UTBL_ROW_COUNT,
> sizeof(u16),
> GFP_KERNEL);
> - if (upcase_table[col_index] == NULL) {
> + if (!upcase_table[col_index]) {
> ret = FFS_MEMORYERR;
> goto error;
> }
> @@ -1640,7 +1640,7 @@ struct dentry_t *get_entry_with_sector(struct super_block *sb, sector_t sector,
>
> buf = buf_getblk(sb, sector);
>
> - if (buf == NULL)
> + if (!buf)
> return NULL;
>
> return (struct dentry_t *)(buf + offset);
> @@ -1658,10 +1658,10 @@ struct dentry_t *get_entry_in_dir(struct super_block *sb, struct chain_t *p_dir,
>
> buf = buf_getblk(sb, sec);
>
> - if (buf == NULL)
> + if (!buf)
> return NULL;
>
> - if (sector != NULL)
> + if (sector)
> *sector = sec;
> return (struct dentry_t *)(buf + off);
> }
> @@ -1721,7 +1721,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
> sec += START_SECTOR(clu);
>
> buf = buf_getblk(sb, sec);
> - if (buf == NULL)
> + if (!buf)
> goto err_out;
>
> ep = (struct dentry_t *)(buf + off);
> @@ -1741,7 +1741,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
> pr_debug("%s: trying to kmalloc %zx bytes for %d entries\n", __func__,
> bufsize, num_entries);
> es = kmalloc(bufsize, GFP_KERNEL);
> - if (es == NULL)
> + if (!es)
> goto err_out;
>
> es->num_entries = num_entries;
> @@ -1820,7 +1820,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
> sec++;
> }
> buf = buf_getblk(sb, sec);
> - if (buf == NULL)
> + if (!buf)
> goto err_out;
> off = 0;
> ep = (struct dentry_t *)(buf);
> @@ -1872,7 +1872,7 @@ static s32 __write_partial_entries_in_entry_set(struct super_block *sb,
> remaining_byte_in_sector >> DENTRY_SIZE_BITS,
> num_entries);
> buf = buf_getblk(sb, sec);
> - if (buf == NULL)
> + if (!buf)
> goto err_out;
> pr_debug("es->buf %p buf_off %u\n", esbuf, buf_off);
> pr_debug("copying %d entries from %p to sector %llu\n",
> @@ -2649,7 +2649,7 @@ void exfat_get_uni_name_from_ext_entry(struct super_block *sb,
> struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
>
> es = get_entry_set_in_dir(sb, p_dir, entry, ES_ALL_ENTRIES, &ep);
> - if (es == NULL || es->num_entries < 3) {
> + if (!es || es->num_entries < 3) {
> if (es)
> release_entry_set(es);
> return;
> diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
> index 881cd85cf677..8d93403a3308 100644
> --- a/drivers/staging/exfat/exfat_super.c
> +++ b/drivers/staging/exfat/exfat_super.c
> @@ -341,7 +341,7 @@ static int exfat_cmpi(const struct dentry *dentry, unsigned int len,
> alen = exfat_striptail_len(name);
> blen = __exfat_striptail_len(len, str);
> if (alen == blen) {
> - if (t == NULL) {
> + if (!t) {
> if (strncasecmp(name->name, str, alen) == 0)
> return 0;
> } else if (nls_strnicmp(t, name->name, str, alen) == 0)
> @@ -587,7 +587,7 @@ static int ffsGetVolInfo(struct super_block *sb, struct vol_info_t *info)
> struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
>
> /* check the validity of pointer parameters */
> - if (info == NULL)
> + if (!info)
> return FFS_ERROR;
>
> /* acquire the lock for file system critical section */
> @@ -650,7 +650,7 @@ static int ffsLookupFile(struct inode *inode, char *path, struct file_id_t *fid)
> pr_debug("%s entered\n", __func__);
>
> /* check the validity of pointer parameters */
> - if ((fid == NULL) || (path == NULL) || (*path == '\0'))
> + if (!fid || !path || (*path == '\0'))
> return FFS_ERROR;
>
> /* acquire the lock for file system critical section */
> @@ -743,7 +743,7 @@ static int ffsCreateFile(struct inode *inode, char *path, u8 mode,
> int ret;
>
> /* check the validity of pointer parameters */
> - if ((fid == NULL) || (path == NULL) || (*path == '\0'))
> + if (!fid || !path || (*path == '\0'))
> return FFS_ERROR;
>
> /* acquire the lock for file system critical section */
> @@ -788,11 +788,11 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
> struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);
>
> /* check the validity of the given file id */
> - if (fid == NULL)
> + if (!fid)
> return FFS_INVALIDFID;
>
> /* check the validity of pointer parameters */
> - if (buffer == NULL)
> + if (!buffer)
> return FFS_ERROR;
>
> /* acquire the lock for file system critical section */
> @@ -811,7 +811,7 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
> count = fid->size - fid->rwoffset;
>
> if (count == 0) {
> - if (rcount != NULL)
> + if (rcount)
> *rcount = 0;
> ret = FFS_EOF;
> goto out;
> @@ -885,7 +885,7 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
> /* How did this ever work and not leak a brlse()?? */
> err_out:
> /* set the size of read bytes */
> - if (rcount != NULL)
> + if (rcount)
> *rcount = read_bytes;
>
> if (p_fs->dev_ejected)
> @@ -917,11 +917,11 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
> struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);
>
> /* check the validity of the given file id */
> - if (fid == NULL)
> + if (!fid)
> return FFS_INVALIDFID;
>
> /* check the validity of pointer parameters */
> - if (buffer == NULL)
> + if (!buffer)
> return FFS_ERROR;
>
> /* acquire the lock for file system critical section */
> @@ -937,7 +937,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
> fid->rwoffset = fid->size;
>
> if (count == 0) {
> - if (wcount != NULL)
> + if (wcount)
> *wcount = 0;
> ret = FFS_SUCCESS;
> goto out;
> @@ -1096,7 +1096,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
> if (p_fs->vol_type == EXFAT) {
> es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
> ES_ALL_ENTRIES, &ep);
> - if (es == NULL)
> + if (!es)
> goto err_out;
> ep2 = ep+1;
> } else {
> @@ -1138,7 +1138,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
>
> err_out:
> /* set the size of written bytes */
> - if (wcount != NULL)
> + if (wcount)
> *wcount = write_bytes;
>
> if (num_alloced == 0)
> @@ -1225,7 +1225,7 @@ static int ffsTruncateFile(struct inode *inode, u64 old_size, u64 new_size)
> if (p_fs->vol_type == EXFAT) {
> es = get_entry_set_in_dir(sb, &fid->dir, fid->entry,
> ES_ALL_ENTRIES, &ep);
> - if (es == NULL) {
> + if (!es) {
> ret = FFS_MEDIAERR;
> goto out;
> }
> @@ -1320,11 +1320,11 @@ static int ffsMoveFile(struct inode *old_parent_inode, struct file_id_t *fid,
> s32 new_entry = 0;
>
> /* check the validity of the given file id */
> - if (fid == NULL)
> + if (!fid)
> return FFS_INVALIDFID;
>
> /* check the validity of pointer parameters */
> - if ((new_path == NULL) || (*new_path == '\0'))
> + if (!new_path || (*new_path == '\0'))
> return FFS_ERROR;
>
> /* acquire the lock for file system critical section */
> @@ -1441,7 +1441,7 @@ static int ffsRemoveFile(struct inode *inode, struct file_id_t *fid)
> struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
>
> /* check the validity of the given file id */
> - if (fid == NULL)
> + if (!fid)
> return FFS_INVALIDFID;
>
> /* acquire the lock for file system critical section */
> @@ -1529,7 +1529,7 @@ static int ffsSetAttr(struct inode *inode, u32 attr)
> if (p_fs->vol_type == EXFAT) {
> es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
> ES_ALL_ENTRIES, &ep);
> - if (es == NULL) {
> + if (!es) {
> ret = FFS_MEDIAERR;
> goto out;
> }
> @@ -1645,7 +1645,7 @@ static int ffsReadStat(struct inode *inode, struct dir_entry_t *info)
> if (p_fs->vol_type == EXFAT) {
> es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
> ES_2_ENTRIES, &ep);
> - if (es == NULL) {
> + if (!es) {
> ret = FFS_MEDIAERR;
> goto out;
> }
> @@ -1769,7 +1769,7 @@ static int ffsWriteStat(struct inode *inode, struct dir_entry_t *info)
> if (p_fs->vol_type == EXFAT) {
> es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
> ES_ALL_ENTRIES, &ep);
> - if (es == NULL) {
> + if (!es) {
> ret = FFS_MEDIAERR;
> goto out;
> }
> @@ -1838,7 +1838,7 @@ static int ffsMapCluster(struct inode *inode, s32 clu_offset, u32 *clu)
> struct file_id_t *fid = &(EXFAT_I(inode)->fid);
>
> /* check the validity of pointer parameters */
> - if (clu == NULL)
> + if (!clu)
> return FFS_ERROR;
>
> /* acquire the lock for file system critical section */
> @@ -1922,7 +1922,7 @@ static int ffsMapCluster(struct inode *inode, s32 clu_offset, u32 *clu)
> if (p_fs->vol_type == EXFAT) {
> es = get_entry_set_in_dir(sb, &fid->dir, fid->entry,
> ES_ALL_ENTRIES, &ep);
> - if (es == NULL) {
> + if (!es) {
> ret = FFS_MEDIAERR;
> goto out;
> }
> @@ -1990,7 +1990,7 @@ static int ffsCreateDir(struct inode *inode, char *path, struct file_id_t *fid)
> pr_debug("%s entered\n", __func__);
>
> /* check the validity of pointer parameters */
> - if ((fid == NULL) || (path == NULL) || (*path == '\0'))
> + if (!fid || !path || (*path == '\0'))
> return FFS_ERROR;
>
> /* acquire the lock for file system critical section */
> @@ -2036,7 +2036,7 @@ static int ffsReadDir(struct inode *inode, struct dir_entry_t *dir_entry)
> struct file_id_t *fid = &(EXFAT_I(inode)->fid);
>
> /* check the validity of pointer parameters */
> - if (dir_entry == NULL)
> + if (!dir_entry)
> return FFS_ERROR;
>
> /* check if the given file ID is opened */
> @@ -2227,7 +2227,7 @@ static int ffsRemoveDir(struct inode *inode, struct file_id_t *fid)
> struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
>
> /* check the validity of the given file id */
> - if (fid == NULL)
> + if (!fid)
> return FFS_INVALIDFID;
>
> dir.dir = fid->dir.dir;
> @@ -3115,10 +3115,10 @@ static const char *exfat_get_link(struct dentry *dentry, struct inode *inode,
> {
> struct exfat_inode_info *ei = EXFAT_I(inode);
>
> - if (ei->target != NULL) {
> + if (ei->target) {
> char *cookie = ei->target;
>
> - if (cookie != NULL)
> + if (cookie)
> return (char *)(ei->target);
> }
> return NULL;
> @@ -3780,7 +3780,7 @@ static int parse_options(char *options, int silent, int *debug,
> if (!options)
> goto out;
>
> - while ((p = strsep(&options, ",")) != NULL) {
> + while (p = strsep(&options, ",")) {
There was an "extra" set of () in here to keep gcc happy, otherwise we
now have:
drivers/staging/exfat/exfat_super.c: In function parse_options:
drivers/staging/exfat/exfat_super.c:3785:9: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
3785 | while (p = strsep(&options, ",")) {
| ^
So I can't take this patch, sorry.
Please fix up and resend.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v2] staging: exfat: cleanup explicit comparisons to NULL
2019-09-03 20:09 ` Greg Kroah-Hartman
@ 2019-09-03 20:56 ` Valentin Vidic
0 siblings, 0 replies; 3+ messages in thread
From: Valentin Vidic @ 2019-09-03 20:56 UTC (permalink / raw)
To: Greg Kroah-Hartman; +Cc: Valdis Kletnieks, devel, linux-kernel, Valentin Vidic
Fixes checkpatch.pl warnings:
CHECK: Comparison to NULL could be written "expr"
CHECK: Comparison to NULL could be written "!expr"
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
---
v2: fix gcc warning in strsep call
drivers/staging/exfat/exfat_core.c | 34 ++++++++---------
drivers/staging/exfat/exfat_super.c | 58 ++++++++++++++---------------
2 files changed, 46 insertions(+), 46 deletions(-)
diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
index da8c58149c35..995358cc7c79 100644
--- a/drivers/staging/exfat/exfat_core.c
+++ b/drivers/staging/exfat/exfat_core.c
@@ -100,7 +100,7 @@ void fs_set_vol_flags(struct super_block *sb, u32 new_flag)
p_fs->vol_flag = new_flag;
if (p_fs->vol_type == EXFAT) {
- if (p_fs->pbr_bh == NULL) {
+ if (!p_fs->pbr_bh) {
if (sector_read(sb, p_fs->PBR_sector,
&p_fs->pbr_bh, 1) != FFS_SUCCESS)
return;
@@ -543,7 +543,7 @@ s32 load_alloc_bitmap(struct super_block *sb)
p_fs->vol_amap = kmalloc_array(p_fs->map_sectors,
sizeof(struct buffer_head *),
GFP_KERNEL);
- if (p_fs->vol_amap == NULL)
+ if (!p_fs->vol_amap)
return FFS_MEMORYERR;
sector = START_SECTOR(p_fs->map_clu);
@@ -685,7 +685,7 @@ void sync_alloc_bitmap(struct super_block *sb)
int i;
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
- if (p_fs->vol_amap == NULL)
+ if (!p_fs->vol_amap)
return;
for (i = 0; i < p_fs->map_sectors; i++)
@@ -714,7 +714,7 @@ static s32 __load_upcase_table(struct super_block *sb, sector_t sector,
upcase_table = p_fs->vol_utbl = kmalloc(UTBL_COL_COUNT * sizeof(u16 *),
GFP_KERNEL);
- if (upcase_table == NULL)
+ if (!upcase_table)
return FFS_MEMORYERR;
memset(upcase_table, 0, UTBL_COL_COUNT * sizeof(u16 *));
@@ -750,11 +750,11 @@ static s32 __load_upcase_table(struct super_block *sb, sector_t sector,
} else { /* uni != index , uni != 0xFFFF */
u16 col_index = get_col_index(index);
- if (upcase_table[col_index] == NULL) {
+ if (!upcase_table[col_index]) {
pr_debug("alloc = 0x%X\n", col_index);
upcase_table[col_index] = kmalloc_array(UTBL_ROW_COUNT,
sizeof(u16), GFP_KERNEL);
- if (upcase_table[col_index] == NULL) {
+ if (!upcase_table[col_index]) {
ret = FFS_MEMORYERR;
goto error;
}
@@ -794,7 +794,7 @@ static s32 __load_default_upcase_table(struct super_block *sb)
upcase_table = p_fs->vol_utbl = kmalloc(UTBL_COL_COUNT * sizeof(u16 *),
GFP_KERNEL);
- if (upcase_table == NULL)
+ if (!upcase_table)
return FFS_MEMORYERR;
memset(upcase_table, 0, UTBL_COL_COUNT * sizeof(u16 *));
@@ -812,12 +812,12 @@ static s32 __load_default_upcase_table(struct super_block *sb)
} else { /* uni != index , uni != 0xFFFF */
u16 col_index = get_col_index(index);
- if (upcase_table[col_index] == NULL) {
+ if (!upcase_table[col_index]) {
pr_debug("alloc = 0x%X\n", col_index);
upcase_table[col_index] = kmalloc_array(UTBL_ROW_COUNT,
sizeof(u16),
GFP_KERNEL);
- if (upcase_table[col_index] == NULL) {
+ if (!upcase_table[col_index]) {
ret = FFS_MEMORYERR;
goto error;
}
@@ -1640,7 +1640,7 @@ struct dentry_t *get_entry_with_sector(struct super_block *sb, sector_t sector,
buf = buf_getblk(sb, sector);
- if (buf == NULL)
+ if (!buf)
return NULL;
return (struct dentry_t *)(buf + offset);
@@ -1658,10 +1658,10 @@ struct dentry_t *get_entry_in_dir(struct super_block *sb, struct chain_t *p_dir,
buf = buf_getblk(sb, sec);
- if (buf == NULL)
+ if (!buf)
return NULL;
- if (sector != NULL)
+ if (sector)
*sector = sec;
return (struct dentry_t *)(buf + off);
}
@@ -1721,7 +1721,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
sec += START_SECTOR(clu);
buf = buf_getblk(sb, sec);
- if (buf == NULL)
+ if (!buf)
goto err_out;
ep = (struct dentry_t *)(buf + off);
@@ -1741,7 +1741,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
pr_debug("%s: trying to kmalloc %zx bytes for %d entries\n", __func__,
bufsize, num_entries);
es = kmalloc(bufsize, GFP_KERNEL);
- if (es == NULL)
+ if (!es)
goto err_out;
es->num_entries = num_entries;
@@ -1820,7 +1820,7 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
sec++;
}
buf = buf_getblk(sb, sec);
- if (buf == NULL)
+ if (!buf)
goto err_out;
off = 0;
ep = (struct dentry_t *)(buf);
@@ -1872,7 +1872,7 @@ static s32 __write_partial_entries_in_entry_set(struct super_block *sb,
remaining_byte_in_sector >> DENTRY_SIZE_BITS,
num_entries);
buf = buf_getblk(sb, sec);
- if (buf == NULL)
+ if (!buf)
goto err_out;
pr_debug("es->buf %p buf_off %u\n", esbuf, buf_off);
pr_debug("copying %d entries from %p to sector %llu\n",
@@ -2651,7 +2651,7 @@ void exfat_get_uni_name_from_ext_entry(struct super_block *sb,
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
es = get_entry_set_in_dir(sb, p_dir, entry, ES_ALL_ENTRIES, &ep);
- if (es == NULL || es->num_entries < 3) {
+ if (!es || es->num_entries < 3) {
if (es)
release_entry_set(es);
return;
diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
index 280bf0d1cf0b..0cd93b9742a6 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -341,7 +341,7 @@ static int exfat_cmpi(const struct dentry *dentry, unsigned int len,
alen = exfat_striptail_len(name);
blen = __exfat_striptail_len(len, str);
if (alen == blen) {
- if (t == NULL) {
+ if (!t) {
if (strncasecmp(name->name, str, alen) == 0)
return 0;
} else {
@@ -589,7 +589,7 @@ static int ffsGetVolInfo(struct super_block *sb, struct vol_info_t *info)
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
/* check the validity of pointer parameters */
- if (info == NULL)
+ if (!info)
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -652,7 +652,7 @@ static int ffsLookupFile(struct inode *inode, char *path, struct file_id_t *fid)
pr_debug("%s entered\n", __func__);
/* check the validity of pointer parameters */
- if ((fid == NULL) || (path == NULL) || (*path == '\0'))
+ if (!fid || !path || (*path == '\0'))
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -745,7 +745,7 @@ static int ffsCreateFile(struct inode *inode, char *path, u8 mode,
int ret;
/* check the validity of pointer parameters */
- if ((fid == NULL) || (path == NULL) || (*path == '\0'))
+ if (!fid || !path || (*path == '\0'))
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -790,11 +790,11 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
/* check the validity of pointer parameters */
- if (buffer == NULL)
+ if (!buffer)
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -813,7 +813,7 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
count = fid->size - fid->rwoffset;
if (count == 0) {
- if (rcount != NULL)
+ if (rcount)
*rcount = 0;
ret = FFS_EOF;
goto out;
@@ -887,7 +887,7 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
/* How did this ever work and not leak a brlse()?? */
err_out:
/* set the size of read bytes */
- if (rcount != NULL)
+ if (rcount)
*rcount = read_bytes;
if (p_fs->dev_ejected)
@@ -920,11 +920,11 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
/* check the validity of pointer parameters */
- if (buffer == NULL)
+ if (!buffer)
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -940,7 +940,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
fid->rwoffset = fid->size;
if (count == 0) {
- if (wcount != NULL)
+ if (wcount)
*wcount = 0;
ret = FFS_SUCCESS;
goto out;
@@ -1099,7 +1099,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL)
+ if (!es)
goto err_out;
ep2 = ep+1;
} else {
@@ -1141,7 +1141,7 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,
err_out:
/* set the size of written bytes */
- if (wcount != NULL)
+ if (wcount)
*wcount = write_bytes;
if (num_alloced == 0)
@@ -1228,7 +1228,7 @@ static int ffsTruncateFile(struct inode *inode, u64 old_size, u64 new_size)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &fid->dir, fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1323,11 +1323,11 @@ static int ffsMoveFile(struct inode *old_parent_inode, struct file_id_t *fid,
s32 new_entry = 0;
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
/* check the validity of pointer parameters */
- if ((new_path == NULL) || (*new_path == '\0'))
+ if (!new_path || (*new_path == '\0'))
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -1444,7 +1444,7 @@ static int ffsRemoveFile(struct inode *inode, struct file_id_t *fid)
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
/* acquire the lock for file system critical section */
@@ -1532,7 +1532,7 @@ static int ffsSetAttr(struct inode *inode, u32 attr)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1648,7 +1648,7 @@ static int ffsReadStat(struct inode *inode, struct dir_entry_t *info)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
ES_2_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1772,7 +1772,7 @@ static int ffsWriteStat(struct inode *inode, struct dir_entry_t *info)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &(fid->dir), fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1842,7 +1842,7 @@ static int ffsMapCluster(struct inode *inode, s32 clu_offset, u32 *clu)
struct file_id_t *fid = &(EXFAT_I(inode)->fid);
/* check the validity of pointer parameters */
- if (clu == NULL)
+ if (!clu)
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -1926,7 +1926,7 @@ static int ffsMapCluster(struct inode *inode, s32 clu_offset, u32 *clu)
if (p_fs->vol_type == EXFAT) {
es = get_entry_set_in_dir(sb, &fid->dir, fid->entry,
ES_ALL_ENTRIES, &ep);
- if (es == NULL) {
+ if (!es) {
ret = FFS_MEDIAERR;
goto out;
}
@@ -1994,7 +1994,7 @@ static int ffsCreateDir(struct inode *inode, char *path, struct file_id_t *fid)
pr_debug("%s entered\n", __func__);
/* check the validity of pointer parameters */
- if ((fid == NULL) || (path == NULL) || (*path == '\0'))
+ if (!fid || !path || (*path == '\0'))
return FFS_ERROR;
/* acquire the lock for file system critical section */
@@ -2040,7 +2040,7 @@ static int ffsReadDir(struct inode *inode, struct dir_entry_t *dir_entry)
struct file_id_t *fid = &(EXFAT_I(inode)->fid);
/* check the validity of pointer parameters */
- if (dir_entry == NULL)
+ if (!dir_entry)
return FFS_ERROR;
/* check if the given file ID is opened */
@@ -2231,7 +2231,7 @@ static int ffsRemoveDir(struct inode *inode, struct file_id_t *fid)
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
/* check the validity of the given file id */
- if (fid == NULL)
+ if (!fid)
return FFS_INVALIDFID;
dir.dir = fid->dir.dir;
@@ -3119,10 +3119,10 @@ static const char *exfat_get_link(struct dentry *dentry, struct inode *inode,
{
struct exfat_inode_info *ei = EXFAT_I(inode);
- if (ei->target != NULL) {
+ if (ei->target) {
char *cookie = ei->target;
- if (cookie != NULL)
+ if (cookie)
return (char *)(ei->target);
}
return NULL;
@@ -3784,7 +3784,7 @@ static int parse_options(char *options, int silent, int *debug,
if (!options)
goto out;
- while ((p = strsep(&options, ",")) != NULL) {
+ while ((p = strsep(&options, ","))) {
int token;
if (!*p)
@@ -4048,7 +4048,7 @@ static int __init exfat_init_inodecache(void)
(SLAB_RECLAIM_ACCOUNT |
SLAB_MEM_SPREAD),
init_once);
- if (exfat_inode_cachep == NULL)
+ if (!exfat_inode_cachep)
return -ENOMEM;
return 0;
}
--
2.20.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-09-03 21:04 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-09-03 17:13 [PATCH] staging: exfat: cleanup explicit comparisons to NULL Valentin Vidic
2019-09-03 20:09 ` Greg Kroah-Hartman
2019-09-03 20:56 ` [PATCH v2] " Valentin Vidic
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