Tejun Heo e49452c677 sysfs: make sysfs_lookup() return ERR_PTR(-ENOENT) on failed lookup ... sysfs tries to keep dcache a strict subset of sysfs_dirent tree by shooting down dentries when a node is removed, that is, no negative dentry for sysfs. However, the lookup function returned NULL and thus created negative dentries when the target node didn't exist. Make sysfs_lookup() return ERR_PTR(-ENOENT) on lookup failure. This fixes the NULL dereference bug in sysfs_get_dentry() discovered by bluetooth rfcomm device moving around. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-01-16 09:54:03 -08:00
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bin.c	sysfs: add copyrights	2007-10-12 14:51:12 -07:00
dir.c	sysfs: make sysfs_lookup() return ERR_PTR(-ENOENT) on failed lookup	2008-01-16 09:54:03 -08:00
file.c	sysfs: fix off-by-one error in fill_read_buffer()	2007-11-28 13:53:53 -08:00
group.c	sysfs: Remove first pass at shadow directory support	2007-10-12 14:51:03 -07:00
inode.c	mm: bdi init hooks	2007-10-17 08:42:45 -07:00
Makefile	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
mount.c	mm: bdi init hooks	2007-10-17 08:42:45 -07:00
symlink.c	sysfs: add copyrights	2007-10-12 14:51:12 -07:00
sysfs.h	sysfs: make sysfs_{get,put}_active() static	2007-10-30 21:52:33 -07:00