| Message ID | 20210323153626.54908-3-andriy.shevchenko@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c index 2e3510dd026c..455fd9cde0e6 100644 --- a/drivers/usb/gadget/udc/pch_udc.c +++ b/drivers/usb/gadget/udc/pch_udc.c @@ -2946,7 +2946,7 @@ static int init_dma_pools(struct pch_udc_dev *dev) dev->dma_addr = dma_map_single(&dev->pdev->dev, ep0out_buf, UDC_EP0OUT_BUFF_SIZE * 4, DMA_FROM_DEVICE); - return 0; + return dma_mapping_error(&dev->pdev->dev, dev->dma_addr); } static int pch_udc_start(struct usb_gadget *g,
DMA mapping might fail, we have to check it with dma_mapping_error(). Otherwise DMA-API is not happy: DMA-API: pch_udc 0000:02:02.4: device driver failed to check map error[device address=0x00000000027ee678] [size=64 bytes] [mapped as single] Fixes: abab0c67c061 ("usb: pch_udc: Fixed issue which does not work with g_serial") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- v2: new patch drivers/usb/gadget/udc/pch_udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)