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

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Date:   Tue, 19 Sep 2017 20:46:30 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Arvind Yadav <arvind.yadav.cs@...il.com>,
        Hans Verkuil <hverkuil@...all.nl>,
        Jonathan Sims <jonathan.625266@...thlink.net>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/3] [media] hdpvr: Improve a size determination in
 hdpvr_alloc_buffers()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 19 Sep 2017 19:27:53 +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/hdpvr/hdpvr-video.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/usb/hdpvr/hdpvr-video.c b/drivers/media/usb/hdpvr/hdpvr-video.c
index 657d910dfa1d..f06efcd70c14 100644
--- a/drivers/media/usb/hdpvr/hdpvr-video.c
+++ b/drivers/media/usb/hdpvr/hdpvr-video.c
@@ -145,6 +145,5 @@ int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
 		 "allocating %u buffers\n", count);
 
 	for (i = 0; i < count; i++) {
-
-		buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
+		buf = kzalloc(sizeof(*buf), GFP_KERNEL);
 		if (!buf)
-- 
2.14.1