rt2x00pci: Disable memory-write-invalidate when the driver exits
The driver calls pci_set_mwi to enable memory-write-invalidate when it is initialized, but does not call pci_clear_mwi when it is removed. Many other drivers calls pci_clear_mwi when pci_set_mwi is called, such as r8169, 8139cp and e1000. This patch adds pci_clear_mwi in error handling and removal procedure, which can fix the problem. Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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@ -149,6 +149,7 @@ exit_free_device:
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ieee80211_free_hw(hw);
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exit_release_regions:
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pci_clear_mwi(pci_dev);
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pci_release_regions(pci_dev);
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exit_disable_device:
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@ -173,6 +174,7 @@ void rt2x00pci_remove(struct pci_dev *pci_dev)
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/*
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* Free the PCI device data.
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*/
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pci_clear_mwi(pci_dev);
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pci_disable_device(pci_dev);
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pci_release_regions(pci_dev);
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}
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