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authorTejun Heo <htejun@gmail.com>2007-06-14 03:45:13 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-11 16:09:03 -0700
commit7a23ad44047b1084a032bc0d127fe08af024593a (patch)
tree1f1819b0897fdd8e0237f22d8eebeb55b75894b9 /fs
parent2b611bb7abdcc08278453fc9f6517401fd69ef95 (diff)
downloadop-kernel-dev-7a23ad44047b1084a032bc0d127fe08af024593a.zip
op-kernel-dev-7a23ad44047b1084a032bc0d127fe08af024593a.tar.gz
sysfs: make sysfs_put() ignore NULL sd
Make sysfs_put() ignore NULL sd instead of oopsing. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/sysfs/sysfs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 687d959..f4fdbbf 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -111,7 +111,7 @@ static inline struct sysfs_dirent * sysfs_get(struct sysfs_dirent * sd)
static inline void sysfs_put(struct sysfs_dirent * sd)
{
- if (atomic_dec_and_test(&sd->s_count))
+ if (sd && atomic_dec_and_test(&sd->s_count))
release_sysfs_dirent(sd);
}
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