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ath9k_htc: Fix warning on device removal 

The commit "ath9k_hw: warn if we cannot change the power to the chip"
introduced a new warning to indicate chip powerup failures, but this
is not required for devices that have been removed. Handle USB device
removal properly by checking for unplugged status.

For PCI devices, this warning will still be seen when the card is pulled
out, not sure how to check for card removal.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2010-12-20 08:02:42 +05:30 committed by John W. Linville
parent 3cfeb0c33f
commit 97dcec5715
7 changed files with 14 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/ath/ath9k/eeprom.h
View File

@ -23,8 +23,6 @@
#include <net/cfg80211.h>
#include "ar9003_eeprom.h"
#define AH_USE_EEPROM 0x1
#ifdef __BIG_ENDIAN
#define AR5416_EEPROM_MAGIC 0x5aa5
#else

6
drivers/net/wireless/ath/ath9k/hif_usb.c
View File

@ -993,16 +993,16 @@ static void ath9k_hif_usb_disconnect(struct usb_interface *interface)
{
struct usb_device *udev = interface_to_usbdev(interface);
struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
bool unplugged = (udev->state == USB_STATE_NOTATTACHED) ? true : false;
if (hif_dev) {
ath9k_htc_hw_deinit(hif_dev->htc_handle,
(udev->state == USB_STATE_NOTATTACHED) ? true : false);
ath9k_htc_hw_deinit(hif_dev->htc_handle, unplugged);
ath9k_htc_hw_free(hif_dev->htc_handle);
ath9k_hif_usb_dev_deinit(hif_dev);
usb_set_intfdata(interface, NULL);
}
if (hif_dev->flags & HIF_USB_START)
if (!unplugged && (hif_dev->flags & HIF_USB_START))
ath9k_hif_usb_reboot(udev);
kfree(hif_dev);

5
drivers/net/wireless/ath/ath9k/htc.h
View File

@ -339,9 +339,8 @@ void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv);
#define OP_ASSOCIATED BIT(7)
#define OP_ENABLE_BEACON BIT(8)
#define OP_LED_DEINIT BIT(9)
#define OP_UNPLUGGED BIT(10)
#define OP_BT_PRIORITY_DETECTED BIT(11)
#define OP_BT_SCAN BIT(12)
#define OP_BT_PRIORITY_DETECTED BIT(10)
#define OP_BT_SCAN BIT(11)
struct ath9k_htc_priv {
struct device *dev;

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

@ -851,9 +851,6 @@ int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
if (ret)
goto err_init;
/* The device may have been unplugged earlier. */
priv->op_flags &= ~OP_UNPLUGGED;
ret = ath9k_init_device(priv, devid, product, drv_info);
if (ret)
goto err_init;
@ -873,7 +870,7 @@ void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
/* Check if the device has been yanked out. */
if (hotunplug)
htc_handle->drv_priv->op_flags |= OP_UNPLUGGED;
htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
ath9k_deinit_device(htc_handle->drv_priv);
ath9k_deinit_wmi(htc_handle->drv_priv);

2
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -1615,6 +1615,8 @@ bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
* simply keep the ATH_DBG_WARN_ON_ONCE() but make
* ath9k_hw_setpower() return type void.
*/
if (!(ah->ah_flags & AH_UNPLUGGED))
ATH_DBG_WARN_ON_ONCE(!status);
return status;

4
drivers/net/wireless/ath/ath9k/hw.h
View File

@ -646,6 +646,10 @@ struct ath_nf_limits {
s16 nominal;
};
/* ah_flags */
#define AH_USE_EEPROM 0x1
#define AH_UNPLUGGED 0x2 /* The card has been physically removed. */
struct ath_hw {
struct ieee80211_hw *hw;
struct ath_common common;

2
drivers/net/wireless/ath/ath9k/wmi.c
View File

@ -250,7 +250,7 @@ int ath9k_wmi_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id,
int time_left, ret = 0;
unsigned long flags;
if (wmi->drv_priv->op_flags & OP_UNPLUGGED)
if (ah->ah_flags & AH_UNPLUGGED)
return 0;
skb = alloc_skb(headroom + cmd_len, GFP_ATOMIC);