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| author | Takashi Iwai | 2017-04-28 15:00:15 +0200 |
|---|---|---|
| committer | Eric W. Biederman | 2017-04-29 04:05:26 +0200 |
| commit | d66bb1607e2d8d384e53f3d93db5c18483c8c4f7 (patch) | |
| tree | 4d063baa6e6130e4c29bb53233d980013ca069ff /fs/proc/generic.c | |
| parent | signal: Make kill_proc_info static (diff) | |
| download | kernel-qcow2-linux-d66bb1607e2d8d384e53f3d93db5c18483c8c4f7.tar.gz kernel-qcow2-linux-d66bb1607e2d8d384e53f3d93db5c18483c8c4f7.tar.xz kernel-qcow2-linux-d66bb1607e2d8d384e53f3d93db5c18483c8c4f7.zip | |
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 <tristan.ye@suse.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'fs/proc/generic.c')
| -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 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--; |