linux-kernel - [PATCH 3/3] [media] usbvision: Improve a size determination in usbvision

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Date:   Sat, 26 Aug 2017 22:52:41 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org, Davidlohr Bueso <dave@...olabs.net>,
        Hans Verkuil <hverkuil@...all.nl>,
        Johan Hovold <johan@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 3/3] [media] usbvision: Improve a size determination in
 usbvision_alloc()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 26 Aug 2017 22:22:13 +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/usb/usbvision/usbvision-video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/usbvision/usbvision-video.c b/drivers/media/usb/usbvision/usbvision-video.c
index e6807bad9792..960272d3c924 100644
--- a/drivers/media/usb/usbvision/usbvision-video.c
+++ b/drivers/media/usb/usbvision/usbvision-video.c
@@ -1319,7 +1319,7 @@ static struct usb_usbvision *usbvision_alloc(struct usb_device *dev,
 {
 	struct usb_usbvision *usbvision;
 
-	usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL);
+	usbvision = kzalloc(sizeof(*usbvision), GFP_KERNEL);
 	if (!usbvision)
 		return NULL;
 
-- 
2.14.0