Commit 5c3e8964 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman

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: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent dc8c8587
......@@ -428,8 +428,12 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt,
*/
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);
......
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