linux-kernel - [PATCH] USB: atmel_usba_udc: fix it to deal with final DMA channel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <1407382987-11242-1-git-send-email-voice.shen@atmel.com>
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/