[PATCH] sr: simplify the local variable initialization in sr_block_open()

From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
To: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org
Cc: "James E . J . Bottomley" <jejb@linux.ibm.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
	clang-built-linux@googlegroups.com,
	kernel-janitors@vger.kernel.org,
	Lukas Bulwahn <lukas.bulwahn@gmail.com>
Subject: [PATCH] sr: simplify the local variable initialization in sr_block_open()
Date: Mon, 14 Mar 2022 16:03:21 +0100	[thread overview]
Message-ID: <20220314150321.17720-1-lukas.bulwahn@gmail.com> (raw)

Commit 01d0c698536f ("sr: implement ->free_disk to simplify refcounting")
refactored sr_block_open(), initialized one variable with a duplicate
assignment (probably an unintended copy & paste duplication) and turned one
error case into an early return, which makes the initialization of the
return variable needless.

So, simplify the local variable initialization in sr_block_open() to make
the code a bit more clear.

No functional change. No change in resulting object code.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
---
Christoph, please ack.

Jens, please pick this minor clean-up on your -next branch on top of the
commit above.

 drivers/scsi/sr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 00142095522a..5ba9df334968 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -483,9 +483,9 @@ static void sr_revalidate_disk(struct scsi_cd *cd)
 
 static int sr_block_open(struct block_device *bdev, fmode_t mode)
 {
-	struct scsi_cd *cd = cd = scsi_cd(bdev->bd_disk);
+	struct scsi_cd *cd = scsi_cd(bdev->bd_disk);
 	struct scsi_device *sdev = cd->device;
-	int ret = -ENXIO;
+	int ret;
 
 	if (scsi_device_get(cd->device))
 		return -ENXIO;
-- 
2.17.1

