linux-kernel - [PATCH] ALSA: consolidate allocation API

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Message-Id: <1450468892-32116-1-git-send-email-hofrat@osadl.org>
Date:	Fri, 18 Dec 2015 21:01:32 +0100
From:	Nicholas Mc Guire <hofrat@...dl.org>
To:	Jaroslav Kysela <perex@...ex.cz>
Cc:	Takashi Iwai <tiwai@...e.com>, Jie Yang <yang.jie@...el.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	Nicholas Mc Guire <hofrat@...dl.org>
Subject: [PATCH] ALSA: consolidate allocation API

This is an API consolidation only. The use of kmalloc + memset to 0
is equivalent to kzalloc.

Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
---

Found by coccinelle script (relaxed version of
scripts/coccinelle/api/alloc/kzalloc-simple.cocci)

Patch was compile tested with: x86_64_defconfig
CONFIG_SND_SEQUENCER=y, CONFIG_SND_SEQUENCER_OSS=y

Patch is against linux-next (localversion-next is -next-20150518)
 
 sound/core/seq/oss/seq_oss_init.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c
index b1221b2..9babc9e 100644
--- a/sound/core/seq/oss/seq_oss_init.c
+++ b/sound/core/seq/oss/seq_oss_init.c
@@ -79,7 +79,7 @@ snd_seq_oss_create_client(void)
 	struct snd_seq_port_info *port;
 	struct snd_seq_port_callback port_callback;
 
-	port = kmalloc(sizeof(*port), GFP_KERNEL);
+	port = kzalloc(sizeof(*port), GFP_KERNEL);
 	if (!port) {
 		rc = -ENOMEM;
 		goto __error;
@@ -94,7 +94,6 @@ snd_seq_oss_create_client(void)
 	system_client = rc;
 
 	/* create annoucement receiver port */
-	memset(port, 0, sizeof(*port));
 	strcpy(port->name, "Receiver");
 	port->addr.client = system_client;
 	port->capability = SNDRV_SEQ_PORT_CAP_WRITE; /* receive only */
-- 
1.7.10.4

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