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>
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@ -224,8 +224,6 @@ static int if_sdio_disable(struct iwm_priv *iwm)
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struct iwm_sdio_priv *hw = iwm_to_if_sdio(iwm);
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int ret;
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iwm_reset(iwm);
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sdio_claim_host(hw->func);
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sdio_writeb(hw->func, 0, IWM_SDIO_INTR_ENABLE_ADDR, &ret);
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if (ret < 0)
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@ -237,6 +235,8 @@ static int if_sdio_disable(struct iwm_priv *iwm)
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iwm_sdio_rx_free(hw);
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iwm_reset(iwm);
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IWM_DBG_SDIO(iwm, INFO, "IWM SDIO disable\n");
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return 0;
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