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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

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24236 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2010-12-04 01:32:15 +00:00
parent bb03c545e8
commit cb875ff79e
2 changed files with 10 additions and 13 deletions
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13
package/mac80211/patches/520-ath9k_pci_error_fix.patch
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@@ -1,13 +0,0 @@
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -255,6 +255,10 @@ static void ath_pci_remove(struct pci_de
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
void __iomem *mem = sc->mem;
+ u16 val;
+
+ /* Do a config read to clear pre-existing pci error status */
+ pci_read_config_word(pdev, PCI_COMMAND, &val);
ath9k_deinit_device(sc);
free_irq(sc->irq, sc);