openwrt/package/kernel/mt76/patches/0003-wifi-mt76-mt7996-fix-uninitialized-variable-in-mt799.patch

From b96ab5e62010887a8abee43dbcccf6f4b3fcb269 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 19 Mar 2024 13:05:36 +0100
Subject: [PATCH] wifi: mt76: mt7996: fix uninitialized variable in
 mt7996_irq_tasklet()

Set intr1 to 0 in mt7996_irq_tasklet() in order to avoid possible
uninitialized variable usage if wed is not active for hif2.

Fixes: 83eafc9251d6 ("wifi: mt76: mt7996: add wed tx support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 mt7996/mmio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mt7996/mmio.c
+++ b/mt7996/mmio.c
@@ -519,7 +519,7 @@ static void mt7996_irq_tasklet(struct ta
 	struct mt7996_dev *dev = from_tasklet(dev, t, mt76.irq_tasklet);
 	struct mtk_wed_device *wed = &dev->mt76.mmio.wed;
 	struct mtk_wed_device *wed_hif2 = &dev->mt76.mmio.wed_hif2;
-	u32 i, intr, mask, intr1;
+	u32 i, intr, mask, intr1 = 0;
 
 	if (dev->hif2 && mtk_wed_device_active(wed_hif2)) {
 		mtk_wed_device_irq_set_mask(wed_hif2, 0);