* [PATCH 9/9] staging: vt6655: device_rx_srv check sk_buff is NULL
[not found] <1433064928-2139-1-git-send-email-tvboxspy@gmail.com>
@ 2015-05-31 9:35 ` Malcolm Priestley
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From: Malcolm Priestley @ 2015-05-31 9:35 UTC (permalink / raw)
To: gregkh; +Cc: linux-wireless, Malcolm Priestley, stable
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 --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,
--
2.1.4
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2015-05-31 9:35 ` [PATCH 9/9] staging: vt6655: device_rx_srv check sk_buff is NULL Malcolm Priestley
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