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: [email protected]
Reported-by: Tristan Ye <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
---
fs/proc/generic.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index ee27feb34cf4..9425c0d97262 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--;
--
2.12.2
