Messages in this thread Patch in this message | | | From | Bo Shen <> | Subject | [PATCH] USB: atmel_usba_udc: fix it to deal with final DMA channel | Date | Thu, 7 Aug 2014 11:43:07 +0800 |
| |
As, the interrupt for DMA is counted from 1, so need to checked the USBA_NR_DMAS, in old way, it only check (USBA_NR_DMAS - 1), so fix it.
Reported-by: Max Liao <liaops@embest-tech.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> ---
drivers/usb/gadget/udc/atmel_usba_udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index 906e65f..c9fe67e 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -1661,7 +1661,7 @@ static irqreturn_t usba_udc_irq(int irq, void *devid) if (dma_status) { int i; - for (i = 1; i < USBA_NR_DMAS; i++) + for (i = 1; i <= USBA_NR_DMAS; i++) if (dma_status & (1 << i)) usba_dma_irq(udc, &udc->usba_ep[i]); } -- 1.8.5.2
| |