diff options
| author |   Malcolm Priestley <tvboxspy@gmail.com> | 2015-05-31 10:35:28 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-06-01 06:24:58 +0900 |
| commit | b5eeed8cb6097c8ea660b6598d36fdbb94065a22 (patch) | |
| tree | 3862117b790e6cec03df7ade60b65b77f5ed76ba /drivers/staging/vt6655/device_main.c | |
| parent | staging: vt6655: replace and resize dwIsr (diff) | |
| download | linux-dev-b5eeed8cb6097c8ea660b6598d36fdbb94065a22.tar.xz linux-dev-b5eeed8cb6097c8ea660b6598d36fdbb94065a22.zip | |
staging: vt6655: device_rx_srv check sk_buff is NULL
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>
Diffstat (limited to 'drivers/staging/vt6655/device_main.c')
| -rw-r--r-- | drivers/staging/vt6655/device_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index aec3ccec2231..8dbde24eb154 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, |