linux-kernel - [PATCH 02/10] dm snapshot: Delete two error messages for a failed memory allocation

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Date:   Thu, 29 Sep 2016 11:10:07 +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>,
        Wolfram Sang <wsa@...-dreams.de>
Subject: [PATCH 02/10] dm snapshot: Delete two error messages for a failed
 memory allocation

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 28 Sep 2016 22:33:09 +0200

Omit extra messages for a memory allocation failure in this function.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/md/dm-snap.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index f262f7e..7d81390 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -329,10 +329,8 @@ static int init_origin_hash(void)
 	_origins = kmalloc_array(ORIGIN_HASH_SIZE,
 				 sizeof(*_origins),
 				 GFP_KERNEL);
-	if (!_origins) {
-		DMERR("unable to allocate memory for _origins");
+	if (!_origins)
 		return -ENOMEM;
-	}
 	for (i = 0; i < ORIGIN_HASH_SIZE; i++)
 		INIT_LIST_HEAD(_origins + i);
 
@@ -340,7 +338,6 @@ static int init_origin_hash(void)
 				    sizeof(*_dm_origins),
 				    GFP_KERNEL);
 	if (!_dm_origins) {
-		DMERR("unable to allocate memory for _dm_origins");
 		kfree(_origins);
 		return -ENOMEM;
 	}
-- 
2.10.0