From: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
To: linux-btrfs@vger.kernel.org
Cc: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Subject: [PATCH 5/5] btrfs-progs:free strdup()s that are not freed
Date: Thu, 5 Sep 2013 10:38:58 +0800 [thread overview]
Message-ID: <1378348738-14451-6-git-send-email-guihc.fnst@cn.fujitsu.com> (raw)
In-Reply-To: <1378348738-14451-1-git-send-email-guihc.fnst@cn.fujitsu.com>
The strdup()s not freed are reported as memory leaks by valgrind.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
---
cmds-subvolume.c | 48 ++++++++++++++++++++++++++++++++++--------------
1 file changed, 34 insertions(+), 14 deletions(-)
diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index e1fa81a..51c529c 100644
--- a/cmds-subvolume.c
+++ b/cmds-subvolume.c
@@ -75,6 +75,8 @@ static int cmd_subvol_create(int argc, char **argv)
{
int retval, res, len;
int fddst = -1;
+ char *dupname = NULL;
+ char *dupdir = NULL;
char *newname;
char *dstdir;
char *dst;
@@ -119,10 +121,10 @@ static int cmd_subvol_create(int argc, char **argv)
goto out;
}
- newname = strdup(dst);
- newname = basename(newname);
- dstdir = strdup(dst);
- dstdir = dirname(dstdir);
+ dupname = strdup(dst);
+ newname = basename(dupname);
+ dupdir = strdup(dst);
+ dstdir = dirname(dupdir);
if (!strcmp(newname, ".") || !strcmp(newname, "..") ||
strchr(newname, '/') ){
@@ -175,6 +177,11 @@ out:
close_file_or_dir(fddst, dirstream);
free(inherit);
+ if (dupname != NULL)
+ free(dupname);
+ if (dupdir != NULL)
+ free(dupdir);
+
return retval;
}
@@ -208,6 +215,8 @@ static int cmd_subvol_delete(int argc, char **argv)
int res, fd, len, e, cnt = 1, ret = 0;
struct btrfs_ioctl_vol_args args;
char *dname, *vname, *cpath;
+ char *dupdname = NULL;
+ char *dupvname = NULL;
char *path;
DIR *dirstream = NULL;
@@ -230,10 +239,10 @@ again:
}
cpath = realpath(path, NULL);
- dname = strdup(cpath);
- dname = dirname(dname);
- vname = strdup(cpath);
- vname = basename(vname);
+ dupdname = strdup(cpath);
+ dname = dirname(dupdname);
+ dupvname = strdup(cpath);
+ vname = basename(dupvname);
free(cpath);
if( !strcmp(vname,".") || !strcmp(vname,"..") ||
@@ -274,6 +283,10 @@ again:
}
out:
+ if (dupdname != NULL)
+ free(dupdname);
+ if (dupvname != NULL)
+ free(dupvname);
cnt++;
if (cnt < argc)
goto again;
@@ -495,6 +508,8 @@ static int cmd_snapshot(int argc, char **argv)
int res, retval;
int fd = -1, fddst = -1;
int len, readonly = 0;
+ char *dupname = NULL;
+ char *dupdir = NULL;
char *newname;
char *dstdir;
struct btrfs_ioctl_vol_args_v2 args;
@@ -562,14 +577,14 @@ static int cmd_snapshot(int argc, char **argv)
}
if (res > 0) {
- newname = strdup(subvol);
- newname = basename(newname);
+ dupname = strdup(subvol);
+ newname = basename(dupname);
dstdir = dst;
} else {
- newname = strdup(dst);
- newname = basename(newname);
- dstdir = strdup(dst);
- dstdir = dirname(dstdir);
+ dupname = strdup(dst);
+ newname = basename(dupname);
+ dupdir = strdup(dst);
+ dstdir = dirname(dupdir);
}
if (!strcmp(newname, ".") || !strcmp(newname, "..") ||
@@ -630,6 +645,11 @@ out:
close_file_or_dir(fd, dirstream2);
free(inherit);
+ if (dupname != NULL)
+ free(dupname);
+ if (dupdir != NULL)
+ free(dupdir);
+
return retval;
}
--
1.8.0.1
next prev parent reply other threads:[~2013-09-05 2:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-05 2:38 [PATCH 0/5] Memory leaks amended Gui Hecheng
2013-09-05 2:38 ` [PATCH 1/5] btrfs-progs:free local variable buf upon unsuccessful returns Gui Hecheng
2013-09-05 2:38 ` [PATCH 2/5] btrfs-progs:local variable memory freed Gui Hecheng
2013-09-09 14:18 ` David Sterba
2013-09-09 14:22 ` David Sterba
2013-09-05 2:38 ` [PATCH 3/5] btrfs-progs: missing tree-freeing statements added Gui Hecheng
2013-09-05 2:38 ` [PATCH 4/5] btrfs-progs:free the local list pending_list in btrfs_scan_one_dir Gui Hecheng
2013-09-05 2:38 ` Gui Hecheng [this message]
2013-09-05 7:00 ` [PATCH 5/5] btrfs-progs:free strdup()s that are not freed Stefan Behrens
2013-09-05 7:10 ` Stefan Behrens
2013-09-05 8:08 ` Gui Hecheng
2013-09-05 8:10 ` Wang Shilong
2013-09-09 14:40 ` David Sterba
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