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| author | Tejun Heo <htejun@gmail.com> | 2007-06-14 03:45:13 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-07-11 16:09:03 -0700 |
| commit | 7a23ad44047b1084a032bc0d127fe08af024593a (patch) | |
| tree | 1f1819b0897fdd8e0237f22d8eebeb55b75894b9 /fs/sysfs/sysfs.h | |
| parent | 2b611bb7abdcc08278453fc9f6517401fd69ef95 (diff) | |
| download | linux-7a23ad44047b1084a032bc0d127fe08af024593a.tar.bz2 | |
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/sysfs/sysfs.h')
| -rw-r--r-- | fs/sysfs/sysfs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 687d959f606d..f4fdbbffd571 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); } |