linux-kernel - [PATCH 3.16 268/328] bcache: do not assign in if condition in bcache

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Message-ID: <lsq.1544392233.718646118@decadent.org.uk>
Date:   Sun, 09 Dec 2018 21:50:33 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Florian Schmaus" <flo@...kplace.eu>,
        "Coly Li" <colyli@...e.de>, "Jens Axboe" <axboe@...nel.dk>
Subject: [PATCH 3.16 268/328] bcache: do not assign in if condition in
 bcache_init()

3.16.62-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Florian Schmaus <flo@...kplace.eu>

commit 16c1fdf4cfd6c0091e59b93ec2cb7e99973f8244 upstream.

Fixes an error condition reported by checkpatch.pl which is caused by
assigning a variable in an if condition.

Signed-off-by: Florian Schmaus <flo@...kplace.eu>
Signed-off-by: Coly Li <colyli@...e.de>
Signed-off-by: Jens Axboe <axboe@...nel.dk>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/md/bcache/super.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -2138,9 +2138,15 @@ static int __init bcache_init(void)
 		return bcache_major;
 	}
 
-	if (!(bcache_wq = alloc_workqueue("bcache", WQ_MEM_RECLAIM, 0)) ||
-	    !(bcache_kobj = kobject_create_and_add("bcache", fs_kobj)) ||
-	    bch_request_init() ||
+	bcache_wq = alloc_workqueue("bcache", WQ_MEM_RECLAIM, 0);
+	if (!bcache_wq)
+		goto err;
+
+	bcache_kobj = kobject_create_and_add("bcache", fs_kobj);
+	if (!bcache_kobj)
+		goto err;
+
+	if (bch_request_init() ||
 	    bch_debug_init(bcache_kobj) ||
 	    sysfs_create_files(bcache_kobj, files))
 		goto err;