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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2013-02-21 16:42:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 17:22:19 -0800
commit49deb4bc227cb9db5b8ebf9434367f8bed057c7a (patch)
treecda54ac20921d7b5145efcc0ca7021d62ef9dc66
parent1b2643f0d09381ad504123809ff587bf6ab0ec7d (diff)
downloadlinux-49deb4bc227cb9db5b8ebf9434367f8bed057c7a.tar.bz2
configfs: move the dereference below the NULL test
The dereference should be moved below the NULL test. spatch with a semantic match is used to found this. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/configfs/dir.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 712b10f64c70..e9dcfa3c208c 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1037,10 +1037,11 @@ static int configfs_dump(struct configfs_dirent *sd, int level)
static int configfs_depend_prep(struct dentry *origin,
struct config_item *target)
{
- struct configfs_dirent *child_sd, *sd = origin->d_fsdata;
+ struct configfs_dirent *child_sd, *sd;
int ret = 0;
- BUG_ON(!origin || !sd);
+ BUG_ON(!origin || !origin->d_fsdata);
+ sd = origin->d_fsdata;
if (sd->s_element == target) /* Boo-yah */
goto out;