From: Stefan Ringel <stefan.ringel@arcor.de>
Date: Fri, 7 May 2010 15:29:04 +0000 (-0300)
Subject: V4L/DVB: tm6000: bugfix image position
X-Git-Tag: v2.6.35-rc1~480^2~2
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=3c7c5e9e8903f201bdbc85bdffba47a2d1352e4c;p=~shefty%2Frdma-dev.git

V4L/DVB: tm6000: bugfix image position

bugfix incorrect image and line position in videobuffer

Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/staging/tm6000/tm6000-video.c b/drivers/staging/tm6000/tm6000-video.c
index 721d5a52948..7828030c4f3 100644
--- a/drivers/staging/tm6000/tm6000-video.c
+++ b/drivers/staging/tm6000/tm6000-video.c
@@ -225,8 +225,8 @@ static int copy_packet(struct urb *urb, u32 header, u8 **ptr, u8 *endp,
 			 * It should, instead, check if the user selected
 			 * entrelaced or non-entrelaced mode
 			 */
-			pos= ((line<<1)+field)*linewidth +
-				block*TM6000_URB_MSG_LEN;
+			pos = ((line << 1) - field - 1) * linewidth +
+				block * TM6000_URB_MSG_LEN;
 
 			/* Don't allow to write out of the buffer */
 			if (pos+TM6000_URB_MSG_LEN > (*buf)->vb.size) {