btrfs: add missing mutex_unlock in btrfs_relocate_sys_chunks()
commit 9af503d91298c3f2945e73703f0e00995be08c30 upstream.
The previous patch that replaced BUG_ON by error handling forgot to
unlock the mutex in the error path.
Link: https://lore.kernel.org/all/Zh%2fHpAGFqa7YAFuM@duo.ucw.cz
Reported-by: Pavel Machek <pavel@denx.de>
Fixes: 7411055db5ce ("btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()")
CC: stable@vger.kernel.org
Reviewed-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Dominique Martinet <dominique.martinet@atmark-techno.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Dominique Martinet <dominique.martinet@atmark-techno.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 6ffbcb3704046668ede6551b236960597d71a005)
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 320acfa..443d858 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3010,6 +3010,7 @@
* alignment and size).
*/
ret = -EUCLEAN;
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
goto error;
}