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wifi: mt76: mt7996: do not attach hif2 WED when the main WED attach failed

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If the WED attach for the primary PCIe function fails, the probe path
still attached wed_hif2 for the secondary function, leaving the device
in an inconsistent half-WED configuration that crashes later. The hif2
call also re-enabled hwrro_mode, which the failed primary attach had
just turned off.

Skip the hif2 WED setup when the primary WED device is not active.

Fixes: 83eafc9251 ("wifi: mt76: mt7996: add wed tx support")
Link: https://patch.msgid.link/20260727150434.1778520-6-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau
2026-07-27 15:04:25 +00:00
parent eb906eeff2
commit 7c1924332e
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
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@@ -490,6 +490,9 @@ int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
if (!wed_enable)
return 0;
if (hif2 && !mtk_wed_device_active(&dev->mt76.mmio.wed))
return 0;
dev->mt76.hwrro_mode = is_mt7996(&dev->mt76) ? MT76_HWRRO_V3
: MT76_HWRRO_V3_1;