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| author | Serge E. Hallyn <serge.hallyn@ubuntu.com> | 2016-05-12 00:29:45 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-05-12 11:03:51 -0400 |
| commit | 3cc9b23c8137e9bb4eaf6d97d825b7f0dc711d0c (patch) | |
| tree | 163de7cbd4f1589c6f72e46e56547712c4eead62 | |
| parent | 4f41fc59620fcedaa97cbdf3d7d2956d80fcd922 (diff) | |
| download | lwn-3cc9b23c8137e9bb4eaf6d97d825b7f0dc711d0c.tar.gz lwn-3cc9b23c8137e9bb4eaf6d97d825b7f0dc711d0c.zip | |
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>
| -rw-r--r-- | fs/kernfs/mount.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c index 3b78724c1979..3d670a3678f2 100644 --- a/fs/kernfs/mount.c +++ b/fs/kernfs/mount.c @@ -50,7 +50,8 @@ static int kernfs_sop_show_path(struct seq_file *sf, struct dentry *dentry) if (scops && scops->show_path) return scops->show_path(sf, node, root); - return seq_dentry(sf, dentry, " \t\n\\"); + seq_dentry(sf, dentry, " \t\n\\"); + return 0; } const struct super_operations kernfs_sops = { |