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From:   Luis Chamberlain <mcgrof@kernel.org>
To:     axboe@kernel.dk, efremov@linux.com, hch@lst.de
Cc:     linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
        Luis Chamberlain <mcgrof@kernel.org>
Subject: [PATCH v2 06/14] amiflop: add error handling support for add_disk()
Date:   Mon, 27 Sep 2021 15:02:54 -0700
Message-Id: <20210927220302.1073499-7-mcgrof@kernel.org>
In-Reply-To: <20210927220302.1073499-1-mcgrof@kernel.org>
References: <20210927220302.1073499-1-mcgrof@kernel.org>
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Sender: Luis Chamberlain <mcgrof@infradead.org>
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We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling. The caller for fd_alloc_disk() deals with
the rest of the cleanup like the tag.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 drivers/block/amiflop.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 8b1714021498..7da6a7532cde 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1780,6 +1780,7 @@ static const struct blk_mq_ops amiflop_mq_ops = {
 static int fd_alloc_disk(int drive, int system)
 {
 	struct gendisk *disk;
+	int err;
 
 	disk = blk_mq_alloc_disk(&unit[drive].tag_set, NULL);
 	if (IS_ERR(disk))
@@ -1798,8 +1799,10 @@ static int fd_alloc_disk(int drive, int system)
 	set_capacity(disk, 880 * 2);
 
 	unit[drive].gendisk[system] = disk;
-	add_disk(disk);
-	return 0;
+	err = add_disk(disk);
+	if (err)
+		blk_cleanup_disk(disk);
+	return err;
 }
 
 static int fd_alloc_drive(int drive)
-- 
2.30.2