diff mbox

[9/9] staging: vt6655: device_rx_srv check sk_buff is NULL

Message ID 1433064928-2139-9-git-send-email-tvboxspy@gmail.com (mailing list archive)
State Not Applicable
Delegated to: Kalle Valo
Headers show

Commit Message

Malcolm Priestley May 31, 2015, 9:35 a.m. UTC 
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>
---
 drivers/staging/vt6655/device_main.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox

Patch

diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index aec3cce..8dbde24 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -805,6 +805,10 @@  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,