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wifi: ath12k: skip WoW path when no vif is present #1221

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wifi: ath12k: skip WoW path when no vif is present #1221

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8 changes: 8 additions & 0 deletions drivers/net/wireless/ath/ath12k/wow.c
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Original file line number Diff line number Diff line change
Expand Up @@ -867,6 +867,14 @@ int ath12k_wow_op_suspend(struct ieee80211_hw *hw,

lockdep_assert_wiphy(hw->wiphy);

/* Without an active vif there is no BSS, channel, or vdev to back
* WoW. Letting WMI_WOW_ENABLE_CMDID reach firmware in this state
* leaves it in an undefined mode and breaks MHI/PCIe on resume.
* Return 1 so mac80211 falls back to a normal radio-off suspend.
*/
if (list_empty(&ar->arvifs))
return 1;

ret = ath12k_wow_cleanup(ar);
if (ret) {
ath12k_warn(ar->ab, "failed to clear wow wakeup events: %d\n",
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