3.19.8-ckt4 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Malcolm Priestley <[email protected]>

commit b5eeed8cb6097c8ea660b6598d36fdbb94065a22 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: Malcolm Priestley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Kamal Mostafa <[email protected]>
---
 drivers/staging/vt6655/device_main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/vt6655/device_main.c 
b/drivers/staging/vt6655/device_main.c
index b95e915..fea0214 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -851,6 +851,10 @@ 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 (vnt_receive_frame(pDevice, pRD)) {
                        if (!device_alloc_rx_buf(pDevice, pRD)) {
                                dev_err(&pDevice->pcid->dev,
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to