于 Fri, 17 Apr 2009 23:36:11 +0200
"Rafael J. Wysocki" <[email protected]> 写道:

> On Friday 17 April 2009, Ming Lei wrote:
> > 2009/4/17 Rafael J. Wysocki <[email protected]>:
> > >
> > > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=13125
> > > Subject         : active uvcvideo breaks over suspend
> > > Submitter       : Alan Jenkins <[email protected]>
> > > Date            : 2009-04-15 10:12 (2 days old)
> > > References      :
> > > http://marc.info/?l=linux-kernel&m=123979009508840&w=4
> > >
> > 
> > It is a bug in resume path of uvcvideo driver, and I have sent a
> > patch to [email protected],
> > [email protected]  and [email protected] to fix it,
> > but still no echo from them.
> > 
> > The patch title is V4L/DVB:usbvideo:fix uvc resume failed.
> > 
> > Rafael J.
> >         If you would like to apply it ,I can resend to you.  Thanks!
> 
> Please resend.
> 
> Rafael

>From 5715e310a939f3f7cd3e88eae8f25fedbb28def4 Mon Sep 17 00:00:00 2001
From: Ming Lei <[email protected]>
Date: Wed, 15 Apr 2009 22:32:51 +0800
Subject: [PATCH] V4L/DVB:usbvideo:fix uvc resume failed

Now urb buffers is not freed before suspend, so uvc_alloc_urb_buffers
should return packet counts allocated originally during uvc resume
, instead of zero.

This patch is against v2.6.30-rc2.

Signed-off-by: Ming Lei <[email protected]>
---
 drivers/media/video/uvc/uvc_video.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/media/video/uvc/uvc_video.c 
b/drivers/media/video/uvc/uvc_video.c
index a95e173..c050b22 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -742,7 +742,7 @@ static int uvc_alloc_urb_buffers(struct uvc_video_device 
*video,
 
        /* Buffers are already allocated, bail out. */
        if (video->urb_size)
-               return 0;
+               return DIV_ROUND_UP(video->urb_size, psize);
 
        /* Compute the number of packets. Bulk endpoints might transfer UVC
         * payloads accross multiple URBs.
-- 
1.6.0.GIT



-- 
Lei Ming
--
To unsubscribe from this list: send the line "unsubscribe kernel-testers" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to