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path: root/drivers/net/wireless/ath/ath9k/hw.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 692fd1dd909..cab17c6c8a3 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -999,6 +999,8 @@ int ath9k_hw_init(struct ath_hw *ah)
ath9k_init_nfcal_hist_buffer(ah);
+ common->state = ATH_HW_INITIALIZED;
+
return 0;
}
@@ -1239,11 +1241,18 @@ const char *ath9k_hw_probe(u16 vendorid, u16 devid)
void ath9k_hw_detach(struct ath_hw *ah)
{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (common->state <= ATH_HW_INITIALIZED)
+ goto free_hw;
+
if (!AR_SREV_9100(ah))
ath9k_hw_ani_disable(ah);
- ath9k_hw_rf_free(ah);
ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
+
+free_hw:
+ ath9k_hw_rf_free(ah);
kfree(ah);
ah = NULL;
}