Wen Gong <wgong@xxxxxxxxxxxxxx> writes: > When function return fail to __ath11k_mac_register after success called > ieee80211_register_hw, then it set wiphy->dev.parent to NULL by > SET_IEEE80211_DEV(ar->hw, NULL) in end of __ath11k_mac_register, then > cfg80211_get_drvinfo will be called by below call stack, but the > wiphy->dev.parent is NULL, so kernel crash. [...] > +err_unregister_hw: > + ieee80211_unregister_hw(ar->hw); > + > err_free_if_combs: > kfree(ar->hw->wiphy->iface_combinations[0].limits); > kfree(ar->hw->wiphy->iface_combinations); Incorrect indentation, I'm surprised checkpatch doesn't catch that. But fixed this in the pending branch. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
