diff options
| author | Takashi Iwai <tiwai@suse.de> | 2017-04-28 15:00:15 +0200 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-05-17 15:08:24 -0400 |
| commit | 3a9700b0709e1db2179f915d3be3a77aba29240c (patch) | |
| tree | 55d5178d810c3414a07c8e4d4fc8faa94347110c | |
| parent | 2279c8b917f7840f1e623cadeb07c12fefc45c77 (diff) | |
proc: Fix unbalanced hard link numbers
[ Upstream commit d66bb1607e2d8d384e53f3d93db5c18483c8c4f7 ]
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 <tristan.ye@suse.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
| -rw-r--r-- | fs/proc/generic.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/proc/generic.c b/fs/proc/generic.c index d99099fe62d4..709586995b46 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -469,6 +469,7 @@ 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--; |