linux-kernel - [PATCH 13/14] PM: mm: cleanup swsusp_swap

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Date:   Thu, 17 Sep 2020 18:57:19 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Josef Bacik <josef@...icpanda.com>,
        Minchan Kim <minchan@...nel.org>,
        Stefan Haberland <sth@...ux.ibm.com>,
        Jan Hoeppner <hoeppner@...ux.ibm.com>,
        Joseph Qi <joseph.qi@...ux.alibaba.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, nbd@...er.debian.org,
        linux-ide@...r.kernel.org, linux-s390@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, ocfs2-devel@....oracle.com,
        linux-pm@...r.kernel.org, linux-mm@...ck.org,
        linux-block@...r.kernel.org
Subject: [PATCH 13/14] PM: mm: cleanup swsusp_swap_check

Use blkdev_get_by_dev instead of bdget + blkdev_get.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 kernel/power/swap.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 9d3ffbfe08dbf6..71385bedcc3a49 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -343,12 +343,10 @@ static int swsusp_swap_check(void)
 		return res;
 	root_swap = res;
 
-	hib_resume_bdev = bdget(swsusp_resume_device);
-	if (!hib_resume_bdev)
-		return -ENOMEM;
-	res = blkdev_get(hib_resume_bdev, FMODE_WRITE, NULL);
-	if (res)
-		return res;
+	hib_resume_bdev = blkdev_get_by_dev(swsusp_resume_device, FMODE_WRITE,
+			NULL);
+	if (IS_ERR(hib_resume_bdev))
+		return PTR_ERR(hib_resume_bdev);
 
 	res = set_blocksize(hib_resume_bdev, PAGE_SIZE);
 	if (res < 0)
-- 
2.28.0