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ath5k: avoid PCI FATAL interrupts by restoring RETRY_TIMEOUT disabling

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This reverts 'ath5k: remove dummy PCI "retry timeout" fix' on the
same theory as in 'ath9k: Fix PCI FATAL interrupts by restoring
RETRY_TIMEOUT disabling'.

Reported-by: Bob Copeland <me@bobcopeland.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen 2009-06-16 11:59:23 +03:00 committed by John W. Linville
parent 464902e812
commit 8451d22dad
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wireless/ath/ath5k/base.c
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@ -686,6 +686,13 @@ ath5k_pci_resume(struct pci_dev *pdev)
if (err)
return err;
/*
* Suspend/Resume resets the PCI configuration space, so we have to
* re-disable the RETRY_TIMEOUT register (0x41) to keep
* PCI Tx retries from interfering with C3 CPU state
*/
pci_write_config_byte(pdev, 0x41, 0);
err = request_irq(pdev->irq, ath5k_intr, IRQF_SHARED, "ath", sc);
if (err) {
ATH5K_ERR(sc, "request_irq failed\n");