[PATCH] mwifiex: Add check for skb_copy

[Jiasheng Jiang]

Add check for the return value of skb_copy in order to avoid NULL pointer
dereference.

Fixes: 838e4f449297 ("mwifiex: improve uAP RX handling")
Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
---
 drivers/net/wireless/marvell/mwifiex/uap_txrx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/uap_txrx.c b/drivers/net/wireless/marvell/mwifiex/uap_txrx.c
index e495f7eaea03..9cfa5de57207 100644
--- a/drivers/net/wireless/marvell/mwifiex/uap_txrx.c
+++ b/drivers/net/wireless/marvell/mwifiex/uap_txrx.c
@@ -243,6 +243,8 @@ int mwifiex_handle_uap_rx_forward(struct mwifiex_private *priv,
 
 	if (is_multicast_ether_addr(ra)) {
 		skb_uap = skb_copy(skb, GFP_ATOMIC);
+		if (!skb_uap)
+			return -ENOMEM;
 		mwifiex_uap_queue_bridged_pkt(priv, skb_uap);
 	} else {
 		if (mwifiex_get_sta_entry(priv, ra)) {
-- 
2.25.1