[PATCH 6.6 241/301] btrfs: add missing mutex_unlock in btrfs_relocate_sys_chunks()

Greg Kroah-Hartman
2024-05-14T11:22:32Z

From: Dominique Martinet <dominique.martinet@atmark-techno.com>

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/volumes.c | 1 +
1 file changed, 1 insertion(+)

--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3368,6 +3368,7 @@ again:
* alignment and size).
*/
ret = -EUCLEAN;
+ mutex_unlock(&fs_info->reclaim_bgs_lock);
goto error;
}