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Date: Thu, 7 Aug 2014 11:43:07 +0800 From: Bo Shen <voice.shen@...el.com> To: Felipe Balbi <balbi@...com> CC: <nicolas.ferre@...el.com>, <liaops@...est-tech.com>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>, Bo Shen <voice.shen@...el.com> Subject: [PATCH] USB: atmel_usba_udc: fix it to deal with final DMA channel 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@...est-tech.com> Signed-off-by: Bo Shen <voice.shen@...el.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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