From: David Howells <dhowells@redhat.com>
To: viro@zeniv.linux.org.uk
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
linux-s390@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, dhowells@redhat.com
Subject: [RFC PATCH 58/68] hypfs: Fix error number left in struct pointer member
Date: Wed, 27 Mar 2019 23:47:56 +0000 [thread overview]
Message-ID: <155373047667.7602.136628510066899878.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <155372999953.7602.13784796495137723805.stgit@warthog.procyon.org.uk>
In hypfs_fill_super(), if hypfs_create_update_file() fails,
sbi->update_file is left holding an error number. This is passed to
hypfs_kill_super() which doesn't check for this.
Fix this by not setting sbi->update_value until after we've checked for
error.
Fixes: 24bbb1faf3f0 ("[PATCH] s390_hypfs filesystem")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
cc: Heiko Carstens <heiko.carstens@de.ibm.com>
cc: linux-s390@vger.kernel.org
---
arch/s390/hypfs/inode.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index ccad1398abd4..b5cfcad953c2 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -269,7 +269,7 @@ static int hypfs_show_options(struct seq_file *s, struct dentry *root)
static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
{
struct inode *root_inode;
- struct dentry *root_dentry;
+ struct dentry *root_dentry, *update_file;
int rc = 0;
struct hypfs_sb_info *sbi;
@@ -300,9 +300,10 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
rc = hypfs_diag_create_files(root_dentry);
if (rc)
return rc;
- sbi->update_file = hypfs_create_update_file(root_dentry);
- if (IS_ERR(sbi->update_file))
- return PTR_ERR(sbi->update_file);
+ update_file = hypfs_create_update_file(root_dentry);
+ if (IS_ERR(update_file))
+ return PTR_ERR(update_file);
+ sbi->update_file = update_file;
hypfs_update_update(sb);
pr_info("Hypervisor filesystem mounted\n");
return 0;
next prev parent reply other threads:[~2019-03-27 23:48 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <155372999953.7602.13784796495137723805.stgit@warthog.procyon.org.uk>
2019-03-27 23:40 ` [RFC PATCH 01/68] kbuild: skip sub-make for in-tree build with GNU Make 4.x David Howells
2019-03-28 0:53 ` Masahiro Yamada
2019-03-30 12:11 ` Masahiro Yamada
2019-04-10 9:54 ` David Howells
2019-03-27 23:40 ` [RFC PATCH 02/68] vfs: Update mount API docs David Howells
2019-03-27 23:40 ` [RFC PATCH 03/68] vfs: Fix refcounting of filenames in fs_parser David Howells
2019-03-27 23:41 ` [RFC PATCH 04/68] vfs: Provide sb->s_iflags settings in fs_context struct David Howells
2019-03-27 23:41 ` [RFC PATCH 05/68] vfs: Provide a mount_pseudo-replacement for the new mount API David Howells
2019-03-27 23:41 ` [RFC PATCH 06/68] vfs: Convert aio to use " David Howells
2019-03-27 23:41 ` [RFC PATCH 07/68] vfs: Convert anon_inodes " David Howells
2019-03-27 23:41 ` [RFC PATCH 08/68] vfs: Convert bdev " David Howells
2019-03-27 23:41 ` [RFC PATCH 09/68] vfs: Convert nsfs " David Howells
2019-03-27 23:41 ` [RFC PATCH 10/68] vfs: Convert pipe " David Howells
2019-03-27 23:41 ` [RFC PATCH 11/68] vfs: Convert zsmalloc " David Howells
2019-03-27 23:42 ` [RFC PATCH 12/68] vfs: Convert sockfs " David Howells
2019-03-27 23:42 ` [RFC PATCH 13/68] vfs: Convert dax " David Howells
2019-03-27 23:42 ` [RFC PATCH 14/68] vfs: Convert drm " David Howells
2019-03-28 7:47 ` Daniel Vetter
2019-04-10 9:59 ` David Howells
2019-03-27 23:42 ` [RFC PATCH 15/68] vfs: Convert ia64 perfmon " David Howells
2019-03-27 23:42 ` [RFC PATCH 16/68] vfs: Convert cxl " David Howells
2019-03-27 23:42 ` [RFC PATCH 17/68] vfs: Convert ocxlflash " David Howells
2019-03-27 23:42 ` [RFC PATCH 18/68] vfs: Convert virtio_balloon " David Howells
2019-03-27 23:42 ` [RFC PATCH 19/68] vfs: Convert btrfs_test " David Howells
2019-03-27 23:43 ` [RFC PATCH 20/68] vfs: Kill off mount_pseudo() and mount_pseudo_xattr() David Howells
2019-03-27 23:43 ` [RFC PATCH 21/68] vfs: Use sget_fc() for pseudo-filesystems David Howells
2019-03-27 23:43 ` [RFC PATCH 22/68] vfs: Convert binderfs to use the new mount API David Howells
2019-03-28 14:45 ` Dan Carpenter
2019-04-10 10:01 ` David Howells
2019-03-27 23:43 ` [RFC PATCH 23/68] vfs: Convert nfsctl " David Howells
2019-03-27 23:43 ` [RFC PATCH 24/68] vfs: Convert rpc_pipefs " David Howells
2019-03-27 23:43 ` [RFC PATCH 25/68] vfs: Kill mount_ns() David Howells
2019-03-27 23:43 ` [RFC PATCH 26/68] vfs: Kill sget_userns() David Howells
2019-03-27 23:43 ` [RFC PATCH 27/68] vfs: Convert binfmt_misc to use the new mount API David Howells
2019-03-27 23:44 ` [RFC PATCH 28/68] vfs: Convert configfs " David Howells
2019-03-27 23:44 ` [RFC PATCH 29/68] vfs: Convert efivarfs " David Howells
2019-03-27 23:44 ` [RFC PATCH 30/68] vfs: Convert fusectl " David Howells
2019-04-24 13:49 ` Miklos Szeredi
2019-04-24 15:16 ` David Howells
2019-03-27 23:44 ` [RFC PATCH 31/68] vfs: Convert qib_fs/ipathfs " David Howells
2019-04-09 17:14 ` Dennis Dalessandro
2019-03-27 23:44 ` [RFC PATCH 32/68] vfs: Convert ibmasmfs " David Howells
2019-03-27 23:44 ` [RFC PATCH 33/68] vfs: Convert oprofilefs " David Howells
2019-03-27 23:44 ` [RFC PATCH 34/68] vfs: Convert gadgetfs " David Howells
2019-03-27 23:44 ` [RFC PATCH 35/68] vfs: Convert xenfs " David Howells
2019-04-02 7:38 ` Juergen Gross
2019-03-27 23:45 ` [RFC PATCH 36/68] vfs: Convert openpromfs " David Howells
2019-03-27 23:45 ` [RFC PATCH 37/68] vfs: Convert apparmorfs " David Howells
2019-03-27 23:45 ` [RFC PATCH 38/68] vfs: Convert securityfs " David Howells
2019-03-27 23:45 ` [RFC PATCH 39/68] vfs: Convert selinuxfs " David Howells
2019-03-27 23:45 ` [RFC PATCH 40/68] vfs: Convert smackfs " David Howells
2019-03-27 23:45 ` [RFC PATCH 41/68] vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs " David Howells
2019-03-27 23:45 ` [RFC PATCH 42/68] vfs: Create fs_context-aware mount_bdev() replacement David Howells
2019-03-27 23:45 ` [RFC PATCH 43/68] vfs: Make fs_parse() handle fs_param_is_fd-type params better David Howells
2019-03-27 23:46 ` [RFC PATCH 44/68] vfs: Convert fuse to use the new mount API David Howells
2019-04-24 13:53 ` Miklos Szeredi
2019-04-24 15:22 ` David Howells
2019-04-24 17:28 ` Miklos Szeredi
2019-03-27 23:46 ` [RFC PATCH 45/68] vfs: Move the subtype parameter into fuse David Howells
2019-03-27 23:46 ` [RFC PATCH 46/68] mtd: Provide fs_context-aware mount_mtd() replacement David Howells
2019-03-27 23:46 ` [RFC PATCH 47/68] vfs: Convert romfs to use the new mount API David Howells
2019-03-27 23:46 ` [RFC PATCH 48/68] vfs: Convert cramfs " David Howells
2019-04-01 15:25 ` Nicolas Pitre
2019-03-27 23:46 ` [RFC PATCH 49/68] vfs: Convert jffs2 " David Howells
2019-03-27 23:46 ` [RFC PATCH 50/68] mtd: Kill mount_mtd() David Howells
2019-03-27 23:47 ` [RFC PATCH 51/68] vfs: Convert squashfs to use the new mount API David Howells
2019-03-27 23:47 ` [RFC PATCH 52/68] vfs: Convert ceph " David Howells
2019-04-27 12:27 ` Jeff Layton
2019-03-27 23:47 ` [RFC PATCH 53/68] vfs: Convert functionfs " David Howells
2019-03-28 10:43 ` Michał Nazarewicz
2019-03-27 23:47 ` [RFC PATCH 54/68] vfs: Add a single-or-reconfig keying to vfs_get_super() David Howells
2019-03-27 23:47 ` [RFC PATCH 55/68] vfs: Convert debugfs to use the new mount API David Howells
2019-03-27 23:47 ` [RFC PATCH 56/68] vfs: Convert tracefs " David Howells
2019-03-27 23:47 ` [RFC PATCH 57/68] vfs: Convert pstore " David Howells
2019-03-28 0:24 ` Kees Cook
2019-03-27 23:47 ` David Howells [this message]
2019-03-27 23:48 ` [RFC PATCH 59/68] vfs: Convert hypfs " David Howells
2019-03-27 23:48 ` [RFC PATCH 60/68] vfs: Convert spufs " David Howells
2019-03-27 23:48 ` [RFC PATCH 61/68] vfs: Kill mount_single() David Howells
2019-03-27 23:48 ` [RFC PATCH 62/68] vfs: Convert coda to use the new mount API David Howells
2019-03-27 23:48 ` [RFC PATCH 63/68] vfs: Convert autofs " David Howells
2019-03-27 23:48 ` [RFC PATCH 64/68] vfs: Convert devpts " David Howells
2019-04-05 12:52 ` Christian Brauner
2019-03-27 23:48 ` [RFC PATCH 65/68] vfs: Convert bpf " David Howells
2019-03-27 23:48 ` [RFC PATCH 66/68] vfs: Convert ubifs " David Howells
2019-03-27 23:49 ` [RFC PATCH 67/68] vfs: Convert orangefs " David Howells
2019-03-27 23:49 ` [RFC PATCH 68/68] gfs2: Convert gfs2 to fs_context David Howells
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