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From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
To: thomas@winischhofer.net, gregkh@linuxfoundation.org
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] drivers: usb-misc: sisusbvga: remove dead code
Date: Tue, 7 Feb 2017 22:01:35 -0600	[thread overview]
Message-ID: <20170208040134.GA4460@embeddedgus> (raw)

The condition modex % 16 cannot be true when modex value is equal to 640
The condition du & 0xff cannot be true when du value is equal to 0x1400

Addresses-Coverity-Id: 101163
Addresses-Coverity-Id: 744373
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
 drivers/usb/misc/sisusbvga/sisusb.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index 05bd39d..440d7fe 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -1831,16 +1831,10 @@ static int sisusb_set_default_mode(struct sisusb_usb_data *sisusb,
 	SETIREGANDOR(SISCR, 0x09, 0x5f, ((crtcdata[16] & 0x01) << 5));
 	SETIREG(SISCR, 0x14, 0x4f);
 	du = (modex / 16) * (bpp * 2);	/* offset/pitch */
-	if (modex % 16)
-		du += bpp;
-
 	SETIREGANDOR(SISSR, 0x0e, 0xf0, ((du >> 8) & 0x0f));
 	SETIREG(SISCR, 0x13, (du & 0xff));
 	du <<= 5;
 	tmp8 = du >> 8;
-	if (du & 0xff)
-		tmp8++;
-
 	SETIREG(SISSR, 0x10, tmp8);
 	SETIREG(SISSR, 0x31, 0x00);	/* VCLK */
 	SETIREG(SISSR, 0x2b, 0x1b);
-- 
2.5.0

             reply	other threads:[~2017-02-08  4:48 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-08  4:01 Gustavo A. R. Silva [this message]
2017-02-16 10:28 ` [PATCH] drivers: usb-misc: sisusbvga: remove dead code Oliver Neukum
2017-02-16 16:39   ` Greg KH
2017-02-16 20:59     ` Felipe Balbi

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