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[PATCH 3/5] blk-throttle: Adjust two function calls together with a variable assignment

From SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups linux.kernel
Subject [PATCH 3/5] blk-throttle: Adjust two function calls together with a variable assignment
Date 2017-01-22 09:40 +0100
Message-ID <t2lQS-6Vp-19@gated-at.bofh.it> (permalink)
References <t2lQR-6Vp-9@gated-at.bofh.it>
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 21 Jan 2017 22:15:33 +0100

The script "checkpatch.pl" pointed information out like the following.

ERROR: do not use assignment in if condition

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 block/blk-throttle.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index b392b48310ba..3cf7472fbba2 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -866,10 +866,12 @@ static void tg_update_disptime(struct throtl_grp *tg)
 	unsigned long read_wait = -1, write_wait = -1, min_wait = -1, disptime;
 	struct bio *bio;
 
-	if ((bio = throtl_peek_queued(&sq->queued[READ])))
+	bio = throtl_peek_queued(&sq->queued[READ]);
+	if (bio)
 		tg_may_dispatch(tg, bio, &read_wait);
 
-	if ((bio = throtl_peek_queued(&sq->queued[WRITE])))
+	bio = throtl_peek_queued(&sq->queued[WRITE]);
+	if (bio)
 		tg_may_dispatch(tg, bio, &write_wait);
 
 	min_wait = min(read_wait, write_wait);
-- 
2.11.0

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[PATCH 0/5] block: Fine-tuning for five function implementations SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-22 09:40 +0100
  [PATCH 4/5] cfq-iosched: Move an assignment for the variable "ret" in  __cfqg_set_weight_device() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-22 09:40 +0100
  [PATCH 3/5] blk-throttle: Adjust two function calls together with a  variable assignment SF Markus Elfring <elfring@users.sourceforge.net> - 2017-01-22 09:40 +0100
    Re: [PATCH 3/5] blk-throttle: Adjust two function calls together  with a variable assignment Johannes Thumshirn <jthumshirn@suse.de> - 2017-01-23 10:30 +0100
      Re: [PATCH 3/5] blk-throttle: Adjust two function calls together with  a variable assignment Jens Axboe <axboe@kernel.dk> - 2017-01-23 16:20 +0100

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