linux-kernel - [PATCH 2/2] [media] dmxdev: Improve a size determination in dvb_dmxdev_add

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Message-ID: <a25b98ec-1456-b5d8-8f41-d957555bea17@users.sourceforge.net>
Date:   Tue, 26 Sep 2017 15:35:51 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org,
        Devendra Sharma <devendra.sharma9091@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/2] [media] dmxdev: Improve a size determination in
 dvb_dmxdev_add_pid()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 26 Sep 2017 15:22:57 +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/dvb-core/dmxdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c
index f8bf7459d5ca..8e0f91775fe4 100644
--- a/drivers/media/dvb-core/dmxdev.c
+++ b/drivers/media/dvb-core/dmxdev.c
@@ -809,7 +809,7 @@ static int dvb_dmxdev_add_pid(struct dmxdev *dmxdev,
 	    (!list_empty(&filter->feed.ts)))
 		return -EINVAL;
 
-	feed = kzalloc(sizeof(struct dmxdev_feed), GFP_KERNEL);
+	feed = kzalloc(sizeof(*feed), GFP_KERNEL);
 	if (feed == NULL)
 		return -ENOMEM;
 
-- 
2.14.1