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wifi: mt76: mt7925: clean up DMA on probe failure

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mt7925_pci_probe() initializes DMA before registering the device. If
mt7925_register_device() fails, probe returns through err_free_irq without
tearing down DMA state.

That leaves the TX NAPI instance enabled and skips the DMA queue cleanup
that the normal remove path performs through mt7925e_unregister_device().
Add a dedicated unwind label for failures after mt7925_dma_init() succeeds.

Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Co-developed-by: Ijae Kim <[email protected]>
Signed-off-by: Ijae Kim <[email protected]>
Signed-off-by: Myeonghun Pak <[email protected]>
Link: https://patch.msgid.link/20260426143728.41534-1-pakmyeonghun@bagmyeonghun-ui-MacBookPro.local
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Myeonghun Pak
2026-05-12 12:55:34 +00:00
committed by Felix Fietkau
parent b0af99f238
commit 34064bd58b
1 changed files with 3 additions and 1 deletions
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mt7925/pci.c
+3 -1
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@@ -415,10 +415,12 @@ static int mt7925_pci_probe(struct pci_dev *pdev,
ret = mt7925_register_device(dev);
if (ret)
goto err_free_irq;
goto err_free_dma;
return 0;
err_free_dma:
mt792x_dma_cleanup(dev);
err_free_irq:
devm_free_irq(&pdev->dev, pdev->irq, dev);
err_free_dev: