From a839c5afcdc345aecb35b0d3bcd0e09b571329c3 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Tue, 29 Jan 2008 14:35:18 -0800 Subject: [PATCH] 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 Acked-by: Greg Kroah-Hartman --- fs/sysfs/symlink.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c index 5f66c4466151..817f5966edca 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,