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Author: Cuda-Chen

virtio-snd.c

@@ -1451,8 +1451,10 @@ static bool virtio_snd_reg_write(virtio_snd_state_t *vsnd,
                 pthread_cond_signal(&virtio_snd_tx_cond);
                 break;
             case VSND_QUEUE_RX:
+                pthread_mutex_lock(&virtio_snd_rx_mutex);
                 rx_ev_notify++;
                 pthread_cond_signal(&virtio_snd_rx_cond);
+                pthread_mutex_unlock(&virtio_snd_rx_mutex);
                 break;
             default:
                 fprintf(stderr, "value %d not supported\n", value);