tree f0dbc1ed55d132b859a62e0785cf4cd37261c64c
parent c7cc64a98512ffc41df86d14a414eb3b09bf7481
author Eric W. Biederman <ebiederm@xmission.com> 1548856452 -0600
committer David Sterba <dsterba@suse.com> 1548868607 +0100

btrfs: On error always free subvol_name in btrfs_mount

The subvol_name is allocated in btrfs_parse_subvol_options and is
consumed and freed in mount_subvol.  Add a free to the error paths that
don't call mount_subvol so that it is guaranteed that subvol_name is
freed when an error happens.

Fixes: 312c89fbca06 ("btrfs: cleanup btrfs_mount() using btrfs_mount_root()")
Cc: stable@vger.kernel.org # v4.19+
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>