linux-kernel - [PATCH 5.0 49/89] loop: do not print warn message if partition scan is successful

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Message-Id: <20190430113611.999291753@linuxfoundation.org>
Date:   Tue, 30 Apr 2019 13:38:40 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dongli Zhang <dongli.zhang@...cle.com>,
        Jan Kara <jack@...e.cz>, Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 5.0 49/89] loop: do not print warn message if partition scan is successful

From: Dongli Zhang <dongli.zhang@...cle.com>

commit 40853d6fc619a6fd3d3177c3973a2eac9b598a80 upstream.

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@...cle.com>
Reviewed-by: Jan Kara <jack@...e.cz>
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/block/loop.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1111,8 +1111,9 @@ 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;
 	}