ar71xx: work around a PCI controller bug which causes reads to the PCI_COMMAND register to return bogus values - properly fixes ath9k module reload issues
SVN-Revision: 24236v19.07.3_mercusys_ac12_duma
parent
2a55832f58
commit
8067f3f3cc
@ -1,13 +0,0 @@
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--- a/drivers/net/wireless/ath/ath9k/pci.c
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+++ b/drivers/net/wireless/ath/ath9k/pci.c
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@@ -255,6 +255,10 @@ static void ath_pci_remove(struct pci_de
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struct ath_wiphy *aphy = hw->priv;
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struct ath_softc *sc = aphy->sc;
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void __iomem *mem = sc->mem;
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+ u16 val;
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+
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+ /* Do a config read to clear pre-existing pci error status */
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+ pci_read_config_word(pdev, PCI_COMMAND, &val);
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ath9k_deinit_device(sc);
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free_irq(sc->irq, sc);
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