4.19-stable review patch. If anyone has any objections, please let me know.
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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: Dominique Martinet dominique.martinet@atmark-techno.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 @@ -2957,6 +2957,7 @@ again: * alignment and size). */ ret = -EUCLEAN; + mutex_unlock(&fs_info->delete_unused_bgs_mutex); goto error; }