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Commit 7a23ad44 authored by Tejun Heo's avatar Tejun Heo Committed by Greg Kroah-Hartman
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sysfs: make sysfs_put() ignore NULL sd 



Make sysfs_put() ignore NULL sd instead of oopsing.

Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 2b611bb7

fs/sysfs/sysfs.h

+1 −1
Original line number Diff line number Diff line
@@ -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);

}