wifi: mwifiex: Fix missed return in oob checks failed path

Add missed return in mwifiex_uap_queue_bridged_pkt() and
mwifiex_process_rx_packet().

Fixes: 1195852816 ("wifi: mwifiex: Fix OOB and integer underflow when rx packets")
Signed-off-by: Polaris Pi <pinkperfect2021@gmail.com>
Reported-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230810083911.3725248-1-pinkperfect2021@gmail.com

drivers/net/wireless/marvell/mwifiex/sta_rx.c

@@ -92,6 +92,7 @@ int mwifiex_process_rx_packet(struct mwifiex_private *priv,
 			    skb->len, rx_pkt_off);
 		priv->stats.rx_dropped++;
 		dev_kfree_skb_any(skb);
+		return -1;
 	}
 
 	if ((!memcmp(&rx_pkt_hdr->rfc1042_hdr, bridge_tunnel_header,

drivers/net/wireless/marvell/mwifiex/uap_txrx.c

@@ -110,6 +110,7 @@ static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv,
 			    skb->len, le16_to_cpu(uap_rx_pd->rx_pkt_offset));
 		priv->stats.rx_dropped++;
 		dev_kfree_skb_any(skb);
+		return;
 	}
 
 	if ((!memcmp(&rx_pkt_hdr->rfc1042_hdr, bridge_tunnel_header,