[PATCH] kvaser_usb: fix "dma on the stack" errors

2012-11-23 Thread Olivier Sobrie
The dma buffer given to usb_bulk_msg() must be allocated and not on the stack. See Documentation/DMA-API-HOWTO.txt section "What memory is DMA'able?" Signed-off-by: Olivier Sobrie --- Here is the incremental patch. Thank you Greg ! Olivier drivers/net/can/usb/kvaser_usb.c | 110 ++

Re: [PATCH] kvaser_usb: fix "dma on the stack" errors

2012-11-23 Thread Olivier Sobrie
On Fri, Nov 23, 2012 at 02:30:28PM +0100, Olivier Sobrie wrote: > The dma buffer given to usb_bulk_msg() must be allocated and not on > the stack. > See Documentation/DMA-API-HOWTO.txt section "What memory is DMA'able?" > > Signed-off-by: Olivier Sobrie > --- > Here is the incremental patch. > Th

Re: [PATCH] kvaser_usb: fix "dma on the stack" errors

2012-11-23 Thread Marc Kleine-Budde
On 11/23/2012 02:40 PM, Olivier Sobrie wrote: > On Fri, Nov 23, 2012 at 02:30:28PM +0100, Olivier Sobrie wrote: >> The dma buffer given to usb_bulk_msg() must be allocated and not on >> the stack. >> See Documentation/DMA-API-HOWTO.txt section "What memory is DMA'able?" >> >> Signed-off-by: Olivier