[PATCH] staging: Check for Null return of fw_download_code

[xerofoify@gmail.com (Nicholas Krause)]

This patch fixes the bug , https://bugzilla.kernel.org/show_bug.cgi?id=60461
on the kernel bugzilla. Further more I am checking if we are allocating a
NULL skb and if so make rt_status to false and free the quene we are using
for allocated skbs in the while/do loop with skb_quene_purge.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
---
 drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
index 1a95d1f..0f18c6d 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
@@ -61,6 +61,11 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
 		}
 
 		skb  = dev_alloc_skb(frag_length + 4);
+		if (skb == NULL) {
+			rt_status = false;
+			skb_queue_purge(&priv->rtllib->skb_waitQ[TXCMD_QUEUE]);
+			break;
+		}
 		memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
 		tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
 		tcb_desc->queue_index = TXCMD_QUEUE;
-- 
1.9.1