Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx> wrote: > The problem is that gpio_free() can sleep and the cfg_soc() can be > called with spinlocks held. One problematic call tree is: > > --> ath_reset_internal() takes &sc->sc_pcu_lock spin lock > --> ath9k_hw_reset() > --> ath9k_hw_gpio_request_in() > --> ath9k_hw_gpio_request() > --> ath9k_hw_gpio_cfg_soc() > > Remove gpio_free(), use error message instead, so we should make sure > there is no GPIO conflict. > > Also remove ath9k_hw_gpio_free() from ath9k_hw_apply_gpio_override(), > as gpio_mask will never be set for SOC chips. > > Signed-off-by: Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. 7c48662b9d56 ath9k: fix sleeping in atomic context -- https://patchwork.kernel.org/project/linux-wireless/patch/1628481916-15030-1-git-send-email-miaoqing@xxxxxxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
