linux-kernel - [PATCH 07/10] dm snapshot: Delete an unnecessary variable initialisation in merge

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Message-ID: <b5b90e8c-ea72-b357-cf28-f222d0a54ec0@users.sourceforge.net>
Date:   Thu, 29 Sep 2016 11:15:26 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     dm-devel@...hat.com, linux-raid@...r.kernel.org,
        Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>, Shaohua Li <shli@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 07/10] dm snapshot: Delete an unnecessary variable
 initialisation in merge_callback()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 29 Sep 2016 09:00:06 +0200

The local variable "b" will be set to an appropriate pointer a bit later.
Thus omit the explicit initialisation at the beginning.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/md/dm-snap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 06b1b69..1d90131 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1046,7 +1046,7 @@ static void error_bios(struct bio *bio);
 static void merge_callback(int read_err, unsigned long write_err, void *context)
 {
 	struct dm_snapshot *s = context;
-	struct bio *b = NULL;
+	struct bio *b;
 
 	if (read_err || write_err) {
 		if (read_err)
-- 
2.10.0