linux-kernel - [PATCH] block: fix returnvar.cocci warnings

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Message-ID: <alpine.DEB.2.02.1505262157340.2027@localhost6.localdomain6>
Date:	Tue, 26 May 2015 21:59:53 +0200 (CEST)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Christoph Hellwig <hch@....de>
cc:	Jens Axboe <axboe@...nel.dk>, Jeff Moyer <jmoyer@...hat.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] block: fix returnvar.cocci warnings

Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
Signed-off-by: Julia Lawall <julia.lawall@...6.fr>
---

One could check whether the ret variable was intended to be used for 
anything.

 fs/buffer.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2996,7 +2996,6 @@ void guard_bio_eod(int rw, struct bio *b
 int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)
 {
 	struct bio *bio;
-	int ret = 0;
 
 	BUG_ON(!buffer_locked(bh));
 	BUG_ON(!buffer_mapped(bh));
@@ -3038,7 +3037,7 @@ int _submit_bh(int rw, struct buffer_hea
 		rw |= REQ_PRIO;
 
 	submit_bio(rw, bio);
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(_submit_bh);
 
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