* [PATCH] Btrfs: check return of kmalloc in btrfs_control_ioctl
@ 2008-12-29 3:43 Shen Feng
0 siblings, 0 replies; only message in thread
From: Shen Feng @ 2008-12-29 3:43 UTC (permalink / raw)
To: linux-btrfs
The memory allocated by kmalloc should be checked before using it.
Signed-off-by: Shen Feng <shen@cn.fujitsu.com>
---
fs/btrfs/super.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 84c3b66..d0e8dce 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -590,6 +590,8 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
int len;
vol = kmalloc(sizeof(*vol), GFP_KERNEL);
+ if (!vol)
+ return -ENOMEM;
if (copy_from_user(vol, (void __user *)arg, sizeof(*vol))) {
ret = -EFAULT;
goto out;
--
1.6.0.6
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2008-12-29 3:43 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-12-29 3:43 [PATCH] Btrfs: check return of kmalloc in btrfs_control_ioctl Shen Feng
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox