ASoC: Intel: avs: DSP recovery and resume fixes

Merge series from Cezary Rojewski <cezary.rojewski@intel.com>:

Two fixes that are result of the recent discussions [1][2].

First adds missing locking around snd_pcm_stop() while the second fix
sets substream state to DISCONNECTED if any suspend/resume related
operation fails so that userspace has means to be aware that something
went wrong during said operation.

sound/soc/intel/avs/ipc.c

@@ -123,7 +123,10 @@ static void avs_dsp_recovery(struct avs_dev *adev)
 				if (!substream || !substream->runtime)
 					continue;
 
+				/* No need for _irq() as we are in nonatomic context. */
+				snd_pcm_stream_lock(substream);
 				snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);
+				snd_pcm_stream_unlock(substream);
 			}
 		}
 	}

sound/soc/intel/avs/pcm.c

@@ -934,8 +934,11 @@ static int avs_component_pm_op(struct snd_soc_component *component, bool be,
 			rtd = snd_pcm_substream_chip(data->substream);
 			if (rtd->dai_link->no_pcm == be && !rtd->dai_link->ignore_suspend) {
 				ret = op(dai, data);
-				if (ret < 0)
+				if (ret < 0) {
+					__snd_pcm_set_state(data->substream->runtime,
+							    SNDRV_PCM_STATE_DISCONNECTED);
 					return ret;
+				}
 			}
 		}
 
@@ -944,8 +947,11 @@ static int avs_component_pm_op(struct snd_soc_component *component, bool be,
 			rtd = snd_pcm_substream_chip(data->substream);
 			if (rtd->dai_link->no_pcm == be && !rtd->dai_link->ignore_suspend) {
 				ret = op(dai, data);
-				if (ret < 0)
+				if (ret < 0) {
+					__snd_pcm_set_state(data->substream->runtime,
+							    SNDRV_PCM_STATE_DISCONNECTED);
 					return ret;
+				}
 			}
 		}
 	}