linux-kernel - [PATCH 2/2] [media] dvb_usb_core: Improve a size determination in two functions

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Date:   Mon, 18 Sep 2017 10:14:37 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org, Antti Palosaari <crope@....fi>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/2] [media] dvb_usb_core: Improve a size determination in two
 functions

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 18 Sep 2017 09:36:33 +0200

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

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
index d0fbf0b0b1cb..f0b225ee4515 100644
--- a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
+++ b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
@@ -279,5 +279,5 @@ static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 	if (d->props->get_stream_config) {
 		memcpy(&stream_props, &adap->props->stream,
-				sizeof(struct usb_data_stream_properties));
+		       sizeof(stream_props));
 		ret = d->props->get_stream_config(adap->fe[adap->active_fe],
 				&adap->ts_type, &stream_props);
@@ -919,5 +919,5 @@ int dvb_usbv2_probe(struct usb_interface *intf,
 		goto err;
 	}
 
-	d = kzalloc(sizeof(struct dvb_usb_device), GFP_KERNEL);
+	d = kzalloc(sizeof(*d), GFP_KERNEL);
 	if (!d) {
-- 
2.14.1