mt76: mt7921s: fix a possible memory leak in mt7921_load_patch

Always release fw data at the end of mt7921_load_patch routine.

Fixes: 78b21758 ("mt76: mt7921s: fix bus hang with wrong privilege")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c

@@ -541,12 +541,8 @@ static int mt7921_load_patch(struct mt7921_dev *dev)
 	if (mt76_is_sdio(&dev->mt76)) {
 		/* activate again */
 		ret = __mt7921_mcu_fw_pmctrl(dev);
-		if (ret)
-			return ret;
-
-		ret = __mt7921_mcu_drv_pmctrl(dev);
-		if (ret)
-			return ret;
+		if (!ret)
+			ret = __mt7921_mcu_drv_pmctrl(dev);
 	}
 
 out: