于 Fri, 17 Apr 2009 23:36:11 +0200"Rafael J. Wysocki" <rjw@xxxxxxx> 写道: > On Friday 17 April 2009, Ming Lei wrote:> > 2009/4/17 Rafael J. Wysocki <rjw@xxxxxxx>:> > >> > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13125> > > Subject : active uvcvideo breaks over suspend> > > Submitter : Alan Jenkins <alan-jenkins@xxxxxxxxxxxxxx>> > > 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 laurent.pinchart@xxxxxxxxx,> > mchehab@xxxxxxxxxxxxx and video4linux-list@xxxxxxxxxx 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 2001From: Ming Lei <tom.leiming@xxxxxxxxx>Date: Wed, 15 Apr 2009 22:32:51 +0800Subject: [PATCH] V4L/DVB:usbvideo:fix uvc resume failed Now urb buffers is not freed before suspend, so uvc_alloc_urb_buffersshould return packet counts allocated originally during uvc resume, instead of zero. This patch is against v2.6.30-rc2. Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx>--- 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.cindex 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_______________________________________________linux-pm mailing listlinux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx://lists.linux-foundation.org/mailman/listinfo/linux-pm
