linux-kernel - [PATCH 3/3] zswap: Delete an error message for a failed memory allocation in zswap_dstmem

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Date:   Sun, 21 May 2017 10:27:30 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-mm@...ck.org, Dan Streetman <ddstreet@...e.org>,
        Seth Jennings <sjenning@...hat.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org, Wolfram Sang <wsa@...-dreams.de>
Subject: [PATCH 3/3] zswap: Delete an error message for a failed memory
 allocation in zswap_dstmem_prepare()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 21 May 2017 09:29:25 +0200

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 mm/zswap.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index 3f0a9a1daef4..ed7312291df9 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -374,7 +374,6 @@ static int zswap_dstmem_prepare(unsigned int cpu)
-	if (!dst) {
-		pr_err("can't allocate compressor buffer\n");
+	if (!dst)
 		return -ENOMEM;
-	}
+
 	per_cpu(zswap_dstmem, cpu) = dst;
 	return 0;
 }
-- 
2.13.0