From: Cezary Rojewski Date: Fri, 30 May 2025 14:10:18 +0000 (+0200) Subject: ASoC: Intel: avs: Fix deadlock when the failing IPC is SET_D0IX X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=9ad1f3cd0d60444c69948854c7e50d2a61b63755;p=users%2Fdwmw2%2Flinux.git ASoC: Intel: avs: Fix deadlock when the failing IPC is SET_D0IX The procedure handling IPC timeouts and EXCEPTION_CAUGHT notification shall cancel any D0IX work before proceeding with DSP recovery. If SET_D0IX called from delayed_work is the failing IPC the procedure will deadlock. Conditionally skip cancelling the work to fix that. Fixes: 335c4cbd201d ("ASoC: Intel: avs: D0ix power state support") Reviewed-by: Amadeusz Sławiński Signed-off-by: Cezary Rojewski Link: https://patch.msgid.link/20250530141025.2942936-3-cezary.rojewski@intel.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/intel/avs/ipc.c b/sound/soc/intel/avs/ipc.c index 08ed9d96738a0..0314f9d4ea5f4 100644 --- a/sound/soc/intel/avs/ipc.c +++ b/sound/soc/intel/avs/ipc.c @@ -169,7 +169,9 @@ static void avs_dsp_exception_caught(struct avs_dev *adev, union avs_notify_msg dev_crit(adev->dev, "communication severed, rebooting dsp..\n"); - cancel_delayed_work_sync(&ipc->d0ix_work); + /* Avoid deadlock as the exception may be the response to SET_D0IX. */ + if (current_work() != &ipc->d0ix_work.work) + cancel_delayed_work_sync(&ipc->d0ix_work); ipc->in_d0ix = false; /* Re-enabled on recovery completion. */ pm_runtime_disable(adev->dev);