From foo@baz Tue Apr 9 12:12:43 2002 Date: Thu, 13 Sep 2007 02:53:13 -0700 To: Greg KH From: Greg Kroah-Hartman Subject: sysfs: spit a warning to users when they try to create a duplicate sysfs file We want to let people know when we create a duplicate sysfs file, as they need to fix up their code. Signed-off-by: Greg Kroah-Hartman --- fs/sysfs/dir.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -428,8 +428,12 @@ void sysfs_addrm_start(struct sysfs_addr */ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) { - if (sysfs_find_dirent(acxt->parent_sd, sd->s_name)) + if (sysfs_find_dirent(acxt->parent_sd, sd->s_name)) { + printk(KERN_WARNING "sysfs: duplicate filename '%s' " + "can not be created\n", sd->s_name); + WARN_ON(1); return -EEXIST; + } sd->s_parent = sysfs_get(acxt->parent_sd);