From: Malcolm Priestley <tvboxspy@gmail.com>
To: gregkh@linuxfoundation.org
Cc: linux-wireless@vger.kernel.org,
Malcolm Priestley <tvboxspy@gmail.com>, <stable@vger.kernel.org>
Subject: [PATCH 9/9] staging: vt6655: device_rx_srv check sk_buff is NULL
Date: Sun, 31 May 2015 10:35:28 +0100 [thread overview]
Message-ID: <1433064928-2139-9-git-send-email-tvboxspy@gmail.com> (raw)
In-Reply-To: <1433064928-2139-1-git-send-email-tvboxspy@gmail.com>
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
prev parent reply other threads:[~2015-05-31 9:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-31 9:35 [PATCH 1/9] staging: vt6655: implement ieee80211_low_level_stats Malcolm Priestley
2015-05-31 9:35 ` [PATCH 2/9] staging: vt6655: dead code remove STAvUpdate802_11Counter Malcolm Priestley
2015-05-31 9:35 ` [PATCH 3/9] staging: vt6655: Remove call to STAvUpdateIsrStatCounter Malcolm Priestley
2015-05-31 9:35 ` [PATCH 4/9] staging: vt6655: remove mib.c/h dead code Malcolm Priestley
2015-05-31 9:35 ` [PATCH 5/9] staging: vt6655: use workqueue for interrupt handling Malcolm Priestley
2015-05-31 9:35 ` [PATCH 6/9] staging: vt6655: vnt_interrupt_process remove page 0 select Malcolm Priestley
2015-05-31 9:35 ` [PATCH 7/9] staging: vt6655: vnt_interrupt_process remove camel case Malcolm Priestley
2015-05-31 9:35 ` [PATCH 8/9] staging: vt6655: replace and resize dwIsr Malcolm Priestley
2015-05-31 9:35 ` Malcolm Priestley [this message]
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