From 81fd7559efe367f3a8ce4f4e2ff0b90d6688b724 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 22 Mar 2009 22:41:28 -0400 Subject: em28xx: fix oops on ARM platform when allocating transfer buffers From: Devin Heitmueller Add missing URB_NO_TRANSFER_DMA_MAP flag, since the use of consistent memory is not permitted for DMA on the ARM platform. Thanks to Paul Thomas for providing sample ARM hardware that was experiencing the oops (tested on the at91rm9200 based LinuxStamp). Thanks to David Brownell for providing insight into the ARM memory architecture. Priority: high Signed-off-by: Devin Heitmueller --- linux/drivers/media/video/em28xx/em28xx-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/linux/drivers/media/video/em28xx/em28xx-core.c b/linux/drivers/media/video/em28xx/em28xx-core.c index 0d4c9fcc2..4edd3870e 100644 --- a/linux/drivers/media/video/em28xx/em28xx-core.c +++ b/linux/drivers/media/video/em28xx/em28xx-core.c @@ -991,7 +991,7 @@ int em28xx_init_isoc(struct em28xx *dev, int max_packets, em28xx_irq_callback, dma_q, 1); urb->number_of_packets = max_packets; - urb->transfer_flags = URB_ISO_ASAP; + urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; k = 0; for (j = 0; j < max_packets; j++) { -- cgit v1.2.3