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 0755bc14229c548c2b5f96a769c34eeeb84faf3d..cd920dad85cdefb881b6ca25ddd62c5400125e12 100644 (file)
--- 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 = {