linux-kernel - [PATCH] logical-bitwise & confusion in se401_init() (was: logical-bitwise & confusion in se401

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Date:	Thu, 13 Mar 2008 16:51:29 +0100
From:	Roel Kluin <12o3l@...cali.nl>
To:	Mauro Carvalho Chehab <mchehab@...radead.org>
CC:	pe1rxq@...at.org, linux-usb@...r.kernel.org,
	video4linux-list@...hat.com, lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH] logical-bitwise & confusion in se401_init() (was: logical-bitwise
 & confusion in se401_init()?)

Mauro Carvalho Chehab wrote:
> On Mon, 10 Mar 2008 00:27:19 +0100
> Roel Kluin <12o3l@...cali.nl> wrote:
> 
>> drivers/media/video/se401.c:1282:
>>
>> if (!cp[2] && SE401_FORMAT_BAYER) {
>>
>> shouldn't this be 'if (!(cp[2] & SE401_FORMAT_BAYER)) {'
>> drivers/media/video/se401.h:52:
>>
>> #define SE401_FORMAT_BAYER       0x40
> 
> I don't have this driver, but this seems to be the proper fix.
---
logical-bitwise & confusion, SE401_FORMAT_BAYER is defined 0x40

Signed-off-by: Roel Kluin <12o3l@...cali.nl>
---
diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c
index d5d7d6c..952c9bd 100644
--- a/drivers/media/video/se401.c
+++ b/drivers/media/video/se401.c
@@ -1279,7 +1279,7 @@ static int se401_init(struct usb_se401 *se401, int button)
 	rc=se401_sndctrl(0, se401, SE401_REQ_GET_HEIGHT, 0, cp, sizeof(cp));
 	se401->cheight=cp[0]+cp[1]*256;
 
-	if (!cp[2] && SE401_FORMAT_BAYER) {
+	if (!cp[2] & SE401_FORMAT_BAYER) {
 		err("Bayer format not supported!");
 		return 1;
 	}
--
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