From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from aserp1040.oracle.com ([141.146.126.69]:16923 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751774AbbKJWXM (ORCPT ); Tue, 10 Nov 2015 17:23:12 -0500 Date: Wed, 11 Nov 2015 01:22:49 +0300 From: Dan Carpenter To: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [patch 1/2] [media] av7110: don't allow negative volumes Message-ID: <20151110222249.GD30281@mwanda> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-media-owner@vger.kernel.org List-ID: The issue here is that we there is a static checker warning because we have a user controlled volume setting and we cap the upper bound but we allow negative numbers. Negative volumes don't make sense, so let's make these variables unsigned. Signed-off-by: Dan Carpenter diff --git a/drivers/media/pci/ttpci/av7110_av.h b/drivers/media/pci/ttpci/av7110_av.h index 5f02ef8..f52276f 100644 --- a/drivers/media/pci/ttpci/av7110_av.h +++ b/drivers/media/pci/ttpci/av7110_av.h @@ -10,7 +10,8 @@ extern int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len); extern int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen); extern int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len); -extern int av7110_set_volume(struct av7110 *av7110, int volleft, int volright); +extern int av7110_set_volume(struct av7110 *av7110, unsigned int volleft, + unsigned int volright); extern int av7110_av_stop(struct av7110 *av7110, int av); extern int av7110_av_start_record(struct av7110 *av7110, int av, struct dvb_demux_feed *dvbdmxfeed); diff --git a/drivers/media/pci/ttpci/av7110_av.c b/drivers/media/pci/ttpci/av7110_av.c index 9ed1ec7..ccb3b2c 100644 --- a/drivers/media/pci/ttpci/av7110_av.c +++ b/drivers/media/pci/ttpci/av7110_av.c @@ -280,9 +280,11 @@ int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen) } -int av7110_set_volume(struct av7110 *av7110, int volleft, int volright) +int av7110_set_volume(struct av7110 *av7110, unsigned int volleft, + unsigned int volright) { - int err, vol, val, balance = 0; + unsigned int vol, val, balance = 0; + int err; dprintk(2, "av7110:%p, \n", av7110);