linux-kernel - [PATCH 04/38] media: av7110

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Message-Id: <e9cdd06dba6827cb6311b8514309648df85ec354.1599062230.git.mchehab+huawei@kernel.org>
Date:   Wed,  2 Sep 2020 18:10:07 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 04/38] media: av7110_v4l: avoid a typecast

While smatch reports an issue there:

	drivers/media/pci/ttpci/av7110_v4l.c:163 ves1820_set_tv_freq() warn: unsigned 'freq' is never less than zero.
	drivers/media/pci/ttpci/av7110_v4l.c:165 ves1820_set_tv_freq() warn: unsigned 'freq' is never less than zero.

The logic is actually fine. Yet, removing the typecast
shuts up smatch and makes the code more readable.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 drivers/media/pci/ttpci/av7110_v4l.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/pci/ttpci/av7110_v4l.c b/drivers/media/pci/ttpci/av7110_v4l.c
index cabe006658dd..6d9c908be713 100644
--- a/drivers/media/pci/ttpci/av7110_v4l.c
+++ b/drivers/media/pci/ttpci/av7110_v4l.c
@@ -160,9 +160,9 @@ static int ves1820_set_tv_freq(struct saa7146_dev *dev, u32 freq)
 	buf[1] = div & 0xff;
 	buf[2] = 0x8e;
 
-	if (freq < (u32) (16 * 168.25))
+	if (freq < 16U * 168.25)
 		config = 0xa0;
-	else if (freq < (u32) (16 * 447.25))
+	else if (freq < 16U * 447.25)
 		config = 0x90;
 	else
 		config = 0x30;
-- 
2.26.2