kernfs: kernfs_sop_show_path: don't return 0 after seq_dentry call
authorSerge E. Hallyn <serge.hallyn@ubuntu.com>
Thu, 12 May 2016 05:29:45 +0000 (00:29 -0500)
committerTejun Heo <tj@kernel.org>
Thu, 12 May 2016 15:03:51 +0000 (11:03 -0400)
commit3cc9b23c8137e9bb4eaf6d97d825b7f0dc711d0c
tree163de7cbd4f1589c6f72e46e56547712c4eead62
parent4f41fc59620fcedaa97cbdf3d7d2956d80fcd922
kernfs: kernfs_sop_show_path: don't return 0 after seq_dentry call

Our caller expects 0 on success, not >0.

This fixes a bug in the patch

cgroup, kernfs: make mountinfo show properly scoped path for cgroup namespaces

where /sys does not show up in mountinfo, breaking criu.

Thanks for catching this, Andrei.

Reported-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
fs/kernfs/mount.c