Commit 7683fe01 authored Jan 04, 2016 by Jia-Ju Bai Committed by Kalle Valo Jan 07, 2016

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>

parent 8ba83d4d

drivers/net/wireless/ralink/rt2x00/rt2x00pci.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -149,6 +149,7 @@ int rt2x00pci_probe(struct pci_dev pci_dev, const struct rt2x00_ops ops)
		ieee80211_free_hw(hw);

		exit_release_regions:
		pci_clear_mwi(pci_dev);
		pci_release_regions(pci_dev);

		exit_disable_device:
		@@ -173,6 +174,7 @@ void rt2x00pci_remove(struct pci_dev *pci_dev)
		/*
		* Free the PCI device data.
		*/
		pci_clear_mwi(pci_dev);
		pci_disable_device(pci_dev);
		pci_release_regions(pci_dev);
		}