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| author | Samuel Ortiz <sameo@linux.intel.com> | 2009-10-16 13:18:54 +0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-10-27 16:48:26 -0400 |
| commit | f96cca8483c1b0bcc8002dc466159bf8fd53ca47 (patch) | |
| tree | 1778a0cfb4e970f08239798a9b9b46de03aaf1a0 /drivers/net/wireless/iwmc3200wifi/sdio.c | |
| parent | 88e6195a911bce85adcc14e8377aa619e8054ab2 (diff) | |
| download | lwn-f96cca8483c1b0bcc8002dc466159bf8fd53ca47.tar.gz lwn-f96cca8483c1b0bcc8002dc466159bf8fd53ca47.zip | |
iwmc3200wifi: SDIO disable race fix
When calling sdio->bus_disable(), we are flushing the command lists before
disabling the sdio function. We can thus potentially get a command response
after having flushed the command list.
To avoid that race, we have to call iwm_reset() after disabling the sdio
function.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwmc3200wifi/sdio.c')
| -rw-r--r-- | drivers/net/wireless/iwmc3200wifi/sdio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwmc3200wifi/sdio.c b/drivers/net/wireless/iwmc3200wifi/sdio.c index 38026b70a2f9..cf86294f719b 100644 --- a/drivers/net/wireless/iwmc3200wifi/sdio.c +++ b/drivers/net/wireless/iwmc3200wifi/sdio.c @@ -224,8 +224,6 @@ static int if_sdio_disable(struct iwm_priv *iwm) struct iwm_sdio_priv *hw = iwm_to_if_sdio(iwm); int ret; - iwm_reset(iwm); - sdio_claim_host(hw->func); sdio_writeb(hw->func, 0, IWM_SDIO_INTR_ENABLE_ADDR, &ret); if (ret < 0) @@ -237,6 +235,8 @@ static int if_sdio_disable(struct iwm_priv *iwm) iwm_sdio_rx_free(hw); + iwm_reset(iwm); + IWM_DBG_SDIO(iwm, INFO, "IWM SDIO disable\n"); return 0; |