From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Wed, 25 Nov 2009 15:00:27 +0000 (-0300)
Subject: V4L/DVB (13504): uvcvideo: Fix extension units parsing
X-Git-Tag: v2.6.33-rc1~338^2~27
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fd3e921739aff709bbaae6d75d9f64542f47c850;p=karo-tx-linux.git

V4L/DVB (13504): uvcvideo: Fix extension units parsing

The bNrInPins field is an 8 bit integer, not a 16 bit integer.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c
index db28311d6ec8..8d51a6a130b0 100644
--- a/drivers/media/video/uvc/uvc_driver.c
+++ b/drivers/media/video/uvc/uvc_driver.c
@@ -844,7 +844,7 @@ static int uvc_parse_vendor_control(struct uvc_device *dev,
 		unit->type = UVC_VC_EXTENSION_UNIT;
 		memcpy(unit->extension.guidExtensionCode, &buffer[4], 16);
 		unit->extension.bNumControls = buffer[20];
-		unit->extension.bNrInPins = get_unaligned_le16(&buffer[21]);
+		unit->extension.bNrInPins = buffer[21];
 		unit->extension.baSourceID = (__u8 *)unit + sizeof *unit;
 		memcpy(unit->extension.baSourceID, &buffer[22], p);
 		unit->extension.bControlSize = buffer[22+p];
@@ -1108,7 +1108,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev,
 		unit->type = buffer[2];
 		memcpy(unit->extension.guidExtensionCode, &buffer[4], 16);
 		unit->extension.bNumControls = buffer[20];
-		unit->extension.bNrInPins = get_unaligned_le16(&buffer[21]);
+		unit->extension.bNrInPins = buffer[21];
 		unit->extension.baSourceID = (__u8 *)unit + sizeof *unit;
 		memcpy(unit->extension.baSourceID, &buffer[22], p);
 		unit->extension.bControlSize = buffer[22+p];