| commit | f53e57975151f54ad8caa1b0ac8a78091cd5700a | [log] [tgz] |
|---|---|---|
| author | Eric W. Biederman <ebiederm@xmission.com> | Mon Jan 19 11:48:45 2015 -0600 |
| committer | Eric W. Biederman <ebiederm@xmission.com> | Thu Apr 09 11:39:56 2015 -0500 |
| tree | 7322a985d8f37d229cdb6ef66ddae5bf218b9df6 | |
| parent | ce07d891a0891d3c0d0c2d73d577490486b809e1 [diff] |
mnt: Fix the error check in __detach_mounts lookup_mountpoint can return either NULL or an error value. Update the test in __detach_mounts to test for an error value to avoid pathological cases causing a NULL pointer dereferences. The callers of __detach_mounts should prevent it from ever being called on an unlinked dentry but don't take any chances. Cc: stable@vger.kernel.org Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>