linux-kernel - [74/98] V4L/DVB (13826): uvcvideo: Fix controls blacklisting

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Date:	Tue, 26 Jan 2010 15:34:40 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>
Subject: [74/98] V4L/DVB (13826): uvcvideo: Fix controls blacklisting

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Laurent Pinchart <laurent.pinchart@...asonboard.com>

commit 385097e08b9c24655626ed760bc67eb7e50115a0 upstream.

The control blacklisting code erroneously used usb_match_id() by passing
a pointer to a usb_device_id structure instead of an array of such
structures.

Replace the usb_match_id() call by usb_match_id_one().

Thanks to Paulo Assis for diagnosing the bug and providing an initial
fix.

Signed-off-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/media/video/uvc/uvc_ctrl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/video/uvc/uvc_ctrl.c
+++ b/drivers/media/video/uvc/uvc_ctrl.c
@@ -1405,7 +1405,7 @@ uvc_ctrl_prune_entity(struct uvc_device 
 	size = entity->processing.bControlSize;
 
 	for (i = 0; i < ARRAY_SIZE(blacklist); ++i) {
-		if (!usb_match_id(dev->intf, &blacklist[i].id))
+		if (!usb_match_one_id(dev->intf, &blacklist[i].id))
 			continue;
 
 		if (blacklist[i].index >= 8 * size ||


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