Commit a839c5af authored Jan 29, 2008 by Mark Fasheh

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>

parent 5cc3bf27

fs/sysfs/symlink.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -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,