This is an automatic generated email to let you know that the following patch were queued at the http://git.linuxtv.org/media-tree.git tree:
Subject: V4L/DVB: gspca - main: Fix a crash of some webcams on ARM arch Author: Jason Wang <jason77.w...@gmail.com> Date: Fri Sep 3 06:57:19 2010 -0300 When plugging some webcams on ARM, the system crashes. This is because we alloc buffer for an urb through usb_buffer_alloc, the alloced buffer is already in DMA coherent region, so we should set the flag of this urb to URB_NO_TRANSFER_DMA_MAP, otherwise when we submit this urb, the hcd core will handle this address as an non-DMA address and call dma_map_single/sg to map it. On arm architecture, dma_map_single a DMA coherent address will be catched by a BUG_ON(). Signed-off-by: Jason Wang <jason77.w...@gmail.com> Signed-off-by: Jean-François Moine <moin...@free.fr> Cc: sta...@kernel.org Signed-off-by: Mauro Carvalho Chehab <mche...@redhat.com> drivers/media/video/gspca/gspca.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) --- http://git.linuxtv.org/media-tree.git?a=commitdiff;h=fa18c9657a3ef6c84d9e56d0b58cf03632592936 diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index b984610..78abc1c 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -223,6 +223,7 @@ static int alloc_and_submit_int_urb(struct gspca_dev *gspca_dev, usb_rcvintpipe(dev, ep->bEndpointAddress), buffer, buffer_len, int_irq, (void *)gspca_dev, interval); + urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; gspca_dev->int_urb = urb; ret = usb_submit_urb(urb, GFP_KERNEL); if (ret < 0) { _______________________________________________ linuxtv-commits mailing list linuxtv-commits@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
