Commit 05e30814 authored May 31, 2015 by Malcolm Priestley Committed by Sasha Levin Jul 03, 2015

staging: vt6655: device_rx_srv check sk_buff is NULL



[ Upstream commit b5eeed8cb6097c8ea660b6598d36fdbb94065a22 ]

There is a small chance that pRD->pRDInfo->skb could go NULL
while the interrupt is processing.

Put NULL check on loop to break out.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

parent d83de3f9

drivers/staging/vt6655/device_main.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1340,6 +1340,10 @@ static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx)
		pRD = pRD->next) {
		if (works++ > 15)
		break;

		if (!pRD->pRDInfo->skb)
		break;

		if (device_receive_frame(pDevice, pRD)) {
		if (!device_alloc_rx_buf(pDevice, pRD)) {
		dev_err(&pDevice->pcid->dev,