linux-kernel - [PATCH 2/2] ASoC: cs35l32: Improve two size determinations in cs35l32_i2c

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Date:   Wed, 22 Nov 2017 20:58:28 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     alsa-devel@...a-project.org,
        Brian Austin <brian.austin@...rus.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Paul Handrigan <Paul.Handrigan@...rus.com>,
        Takashi Iwai <tiwai@...e.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/2] ASoC: cs35l32: Improve two size determinations in
 cs35l32_i2c_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 22 Nov 2017 20:40:47 +0100

Replace the specification of two data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 sound/soc/codecs/cs35l32.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/cs35l32.c b/sound/soc/codecs/cs35l32.c
index e41d8ebe6eea..bc3a72e4c4ed 100644
--- a/sound/soc/codecs/cs35l32.c
+++ b/sound/soc/codecs/cs35l32.c
@@ -355,9 +355,7 @@ static int cs35l32_i2c_probe(struct i2c_client *i2c_client,
 	unsigned int devid = 0;
 	unsigned int reg;
 
-
-	cs35l32 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l32_private),
-			       GFP_KERNEL);
+	cs35l32 = devm_kzalloc(&i2c_client->dev, sizeof(*cs35l32), GFP_KERNEL);
 	if (!cs35l32)
 		return -ENOMEM;
 
@@ -373,9 +371,8 @@ static int cs35l32_i2c_probe(struct i2c_client *i2c_client,
 	if (pdata) {
 		cs35l32->pdata = *pdata;
 	} else {
-		pdata = devm_kzalloc(&i2c_client->dev,
-				     sizeof(struct cs35l32_platform_data),
-				GFP_KERNEL);
+		pdata = devm_kzalloc(&i2c_client->dev, sizeof(*pdata),
+				     GFP_KERNEL);
 		if (!pdata)
 			return -ENOMEM;
 
-- 
2.15.0