linux-kernel - [PATCH 2/3] [media] si470x: Improve a size determination in si470x_usb_driver

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Message-ID: <53bfd9dc-b0ba-5cf0-0aaf-0db358a10082@users.sourceforge.net>
Date:   Sat, 16 Sep 2017 15:38:59 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org, Hans Verkuil <hverkuil@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/3] [media] si470x: Improve a size determination in
 si470x_usb_driver_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 16 Sep 2017 14:58:06 +0200

Replace the specification of a data structure by a pointer dereference
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>
---
 drivers/media/radio/si470x/radio-si470x-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c
index af295530b20f..6fc6e8235f20 100644
--- a/drivers/media/radio/si470x/radio-si470x-usb.c
+++ b/drivers/media/radio/si470x/radio-si470x-usb.c
@@ -584,5 +584,5 @@ static int si470x_usb_driver_probe(struct usb_interface *intf,
 	/* private data allocation and initialization */
-	radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL);
+	radio = kzalloc(sizeof(*radio), GFP_KERNEL);
 	if (!radio) {
 		retval = -ENOMEM;
 		goto err_initial;
-- 
2.14.1