From d66bb1607e2d8d384e53f3d93db5c18483c8c4f7 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 28 Apr 2017 15:00:15 +0200 Subject: proc: Fix unbalanced hard link numbers proc_create_mount_point() forgot to increase the parent's nlink, and it resulted in unbalanced hard link numbers, e.g. /proc/fs shows one less than expected. Fixes: eb6d38d5427b ("proc: Allow creating permanently empty directories...") Cc: stable@vger.kernel.org Reported-by: Tristan Ye Signed-off-by: Takashi Iwai Signed-off-by: Eric W. Biederman --- fs/proc/generic.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/proc') diff --git a/fs/proc/generic.c b/fs/proc/generic.c index ee27feb..9425c0d 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -472,6 +472,7 @@ struct proc_dir_entry *proc_create_mount_point(const char *name) ent->data = NULL; ent->proc_fops = NULL; ent->proc_iops = NULL; + parent->nlink++; if (proc_register(parent, ent) < 0) { kfree(ent); parent->nlink--; -- cgit v1.1