dma_mapping_error function unable to works in PowerPC arch when MUSB do not use DMA (illegal memory access). Proposed patch replace its usage to usual define for checking DMA mapping. Signed-off-by: Alexey Spirkov <alexeis@xxxxxxxxxxxx> --- drivers/usb/musb/musb_gadget.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index eae8b1b..3bc7c25 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -140,7 +140,7 @@ __acquires(ep->musb->lock) ep->busy = 1; spin_unlock(&musb->lock); - if (!dma_mapping_error(&musb->g.dev, request->dma)) + if (req && is_buffer_mapped(req)) unmap_dma_buffer(req, musb); trace_musb_req_gb(req); -- 2.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
