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authorMark Fasheh <mfasheh@suse.com>2008-01-29 14:35:18 -0800
committerMark Fasheh <mfasheh@suse.com>2008-04-18 08:56:10 -0700
commita839c5afcdc345aecb35b0d3bcd0e09b571329c3 (patch)
tree58fda1dc26c12edc365e7cd2fe12f8dfc7554dd2
parent5cc3bf2786f63cceb191c3c02ddd83c6f38a7d64 (diff)
sysfs: Allow removal of symlinks in the sysfs root
Allow callers of sysfs_remove_link() to pass a NULL kobj, in which case sysfs_root will be used as the parent directory. This allows us to tear down top level symlinks created via sysfs_create_link(), which already has similar handling of a NULL parent object. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--fs/sysfs/symlink.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 5f66c446615..817f5966edc 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -87,7 +87,14 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char
void sysfs_remove_link(struct kobject * kobj, const char * name)
{
- sysfs_hash_and_remove(kobj->sd, name);
+ struct sysfs_dirent *parent_sd = NULL;
+
+ if (!kobj)
+ parent_sd = &sysfs_root;
+ else
+ parent_sd = kobj->sd;
+
+ sysfs_hash_and_remove(parent_sd, name);
}
static int sysfs_get_target_path(struct sysfs_dirent *parent_sd,