Commit c86b2176 authored by Malcolm Priestley's avatar Malcolm Priestley Committed by Kamal Mostafa

staging: vt6655: device_rx_srv check sk_buff is NULL

commit b5eeed8c upstream.

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: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarKamal Mostafa <kamal@canonical.com>
parent ce34a835
...@@ -851,6 +851,10 @@ static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx) ...@@ -851,6 +851,10 @@ static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx)
pRD = pRD->next) { pRD = pRD->next) {
if (works++ > 15) if (works++ > 15)
break; break;
if (!pRD->pRDInfo->skb)
break;
if (vnt_receive_frame(pDevice, pRD)) { if (vnt_receive_frame(pDevice, pRD)) {
if (!device_alloc_rx_buf(pDevice, pRD)) { if (!device_alloc_rx_buf(pDevice, pRD)) {
dev_err(&pDevice->pcid->dev, dev_err(&pDevice->pcid->dev,
......
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