loop: do not print warn message if partition scan is successful

[ Upstream commit 40853d6fc619a6fd3d3177c3973a2eac9b598a80 ]

Do not print warn message when the partition scan returns 0.

Fixes: d57f3374ba48 ("loop: Move special partition reread handling in loop_clr_fd()")
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index a63da9e..f1e63eb 100644 (file)
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1112,8 +1112,9 @@ out_unlock:
                        err = __blkdev_reread_part(bdev);
                else
                        err = blkdev_reread_part(bdev);
-               pr_warn("%s: partition scan of loop%d failed (rc=%d)\n",
-                       __func__, lo_number, err);
+               if (err)
+                       pr_warn("%s: partition scan of loop%d failed (rc=%d)\n",
+                               __func__, lo_number, err);
                /* Device is gone, no point in returning error */
                err = 0;
        }