wilc1000: call complete() for failure in wilc_wlan_txq_add_cfg_pkt()

Added complete() call for failure case in wilc_wlan_txq_add_cfg_pkt().
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201125114059.10006-5-ajay.kathat@microchip.com

drivers/net/wireless/microchip/wilc1000/wlan.c

@@ -258,8 +258,10 @@ static int wilc_wlan_txq_add_cfg_pkt(struct wilc_vif *vif, u8 *buffer,
 	}
 
 	tqe = kmalloc(sizeof(*tqe), GFP_ATOMIC);
-	if (!tqe)
+	if (!tqe) {
+		complete(&wilc->cfg_event);
 		return 0;
+	}
 
 	tqe->type = WILC_CFG_PKT;
 	tqe->buffer = buffer;