From: Devendra Naga <devendra.aaru@gmail.com>
Date: Wed, 5 Sep 2012 10:03:47 +0000 (+0530)
Subject: staging: slicoss: fix a null deref when pci_alloc_consistent fail
X-Git-Tag: v3.12-rc1~2303^2~680
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b8131fc0e1c37563c278743e6def971be993cdda;p=kernel%2Fkernel-generic.git

staging: slicoss: fix a null deref when pci_alloc_consistent fail

we are dereferencing the pshmem , and the pci_alloc_consistent can fail
returning null,

do a memcpy if we have a valid pshmem

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 0755bc1..cd920da 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -3701,9 +3701,8 @@ static void slic_init_adapter(struct net_device *netdev,
 					phys_shmem);
 	ASSERT(adapter->pshmem);
 
-	memset(adapter->pshmem, 0, sizeof(struct slic_shmem));
-
-	return;
+	if (adapter->pshmem)
+		memset(adapter->pshmem, 0, sizeof(struct slic_shmem));
 }
 
 static const struct net_device_ops slic_netdev_ops = {