diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/emxx_udc/emxx_udc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c index 3897f8e8f5e0..6870a33d4ccf 100644 --- a/drivers/staging/emxx_udc/emxx_udc.c +++ b/drivers/staging/emxx_udc/emxx_udc.c @@ -2591,10 +2591,15 @@ static int nbu2ss_ep_queue(struct usb_ep *_ep, req->unaligned = false; if (req->unaligned) { - if (!ep->virt_buf) + if (!ep->virt_buf) { ep->virt_buf = dma_alloc_coherent(udc->dev, PAGE_SIZE, &ep->phys_buf, GFP_ATOMIC | GFP_DMA); + if (!ep->virt_buf) { + spin_unlock_irqrestore(&udc->lock, flags); + return -ENOMEM; + } + } if (ep->epnum > 0) { if (ep->direct == USB_DIR_IN) memcpy(ep->virt_buf, req->req.buf, |