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ath9k: fix race in setting ATH_OP_INVALID 

The commit "ath9k: move sc_flags to ath_common" moved setting
ATH_OP_INVALID flag below ieee80211_register_hw. This is causing
the flag never being cleared randomly as the drv_start is called
prior to setting flag. Fix this by setting the flag prior to
register_hw.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2014-04-23 15:07:57 +05:30 committed by John W. Linville
parent c82552c5b0
commit 8c7ae357cc
3 changed files with 3 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/ath/ath9k/ahb.c
View File

@ -86,7 +86,6 @@ static int ath_ahb_probe(struct platform_device *pdev)
int irq;
int ret = 0;
struct ath_hw *ah;
struct ath_common *common;
char hw_name[64];
if (!dev_get_platdata(&pdev->dev)) {
@ -146,9 +145,6 @@ static int ath_ahb_probe(struct platform_device *pdev)
wiphy_info(hw->wiphy, "%s mem=0x%lx, irq=%d\n",
hw_name, (unsigned long)mem, irq);
common = ath9k_hw_common(sc->sc_ah);
/* Will be cleared in ath9k_start() */
set_bit(ATH_OP_INVALID, &common->op_flags);
return 0;
err_irq:

3
drivers/net/wireless/ath/ath9k/init.c
View File

@ -783,6 +783,9 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc,
common = ath9k_hw_common(ah);
ath9k_set_hw_capab(sc, hw);
/* Will be cleared in ath9k_start() */
set_bit(ATH_OP_INVALID, &common->op_flags);
/* Initialize regulatory */
error = ath_regd_init(&common->regulatory, sc->hw->wiphy,
ath9k_reg_notifier);

5
drivers/net/wireless/ath/ath9k/pci.c
View File

@ -784,7 +784,6 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct ath_softc *sc;
struct ieee80211_hw *hw;
struct ath_common *common;
u8 csz;
u32 val;
int ret = 0;
@ -877,10 +876,6 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
wiphy_info(hw->wiphy, "%s mem=0x%lx, irq=%d\n",
hw_name, (unsigned long)sc->mem, pdev->irq);
/* Will be cleared in ath9k_start() */
common = ath9k_hw_common(sc->sc_ah);
set_bit(ATH_OP_INVALID, &common->op_flags);
return 0;
err_init: