From: Heiko Carstens <[email protected]>
This patch makes it safe to call sysfs_remove_group() with a name group
that doesn't exist. Needed to make fix cpu hotplug stuff in topology code.
Signed-off-by: Heiko Carstens <[email protected]>
---
fs/sysfs/group.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletion(-)
Index: linux-2.6/fs/sysfs/group.c
===================================================================
--- linux-2.6.orig/fs/sysfs/group.c 2006-10-09 09:15:25.000000000 +0200
+++ linux-2.6/fs/sysfs/group.c 2006-10-09 09:25:23.000000000 +0200
@@ -68,9 +68,12 @@
{
struct dentry * dir;
- if (grp->name)
+ if (grp->name) {
+ if (!sysfs_dirent_exist(kobj->dentry->d_fsdata, grp->name))
+ return;
dir = lookup_one_len(grp->name, kobj->dentry,
strlen(grp->name));
+ }
else
dir = dget(kobj->dentry);
-
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