--- zzzz-none-000/linux-3.10.107/sound/usb/6fire/pcm.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/usb/6fire/pcm.c	2021-02-04 17:41:59.000000000 +0000
@@ -79,32 +79,35 @@
 	ctrl_rt->usb_streaming = false;
 	ret = ctrl_rt->update_streaming(ctrl_rt);
 	if (ret < 0) {
-		snd_printk(KERN_ERR PREFIX "error stopping streaming while "
-				"setting samplerate %d.\n", rates[rt->rate]);
+		dev_err(&rt->chip->dev->dev,
+			"error stopping streaming while setting samplerate %d.\n",
+			rates[rt->rate]);
 		return ret;
 	}
 
 	ret = ctrl_rt->set_rate(ctrl_rt, rt->rate);
 	if (ret < 0) {
-		snd_printk(KERN_ERR PREFIX "error setting samplerate %d.\n",
-				rates[rt->rate]);
+		dev_err(&rt->chip->dev->dev,
+			"error setting samplerate %d.\n",
+			rates[rt->rate]);
 		return ret;
 	}
 
 	ret = ctrl_rt->set_channels(ctrl_rt, OUT_N_CHANNELS, IN_N_CHANNELS,
 			false, false);
 	if (ret < 0) {
-		snd_printk(KERN_ERR PREFIX "error initializing channels "
-				"while setting samplerate %d.\n",
-				rates[rt->rate]);
+		dev_err(&rt->chip->dev->dev,
+			"error initializing channels while setting samplerate %d.\n",
+			rates[rt->rate]);
 		return ret;
 	}
 
 	ctrl_rt->usb_streaming = true;
 	ret = ctrl_rt->update_streaming(ctrl_rt);
 	if (ret < 0) {
-		snd_printk(KERN_ERR PREFIX "error starting streaming while "
-				"setting samplerate %d.\n", rates[rt->rate]);
+		dev_err(&rt->chip->dev->dev,
+			"error starting streaming while setting samplerate %d.\n",
+			rates[rt->rate]);
 		return ret;
 	}
 
@@ -124,7 +127,7 @@
 		return &rt->playback;
 	else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE)
 		return &rt->capture;
-	snd_printk(KERN_ERR PREFIX "error getting pcm substream slot.\n");
+	dev_err(&rt->chip->dev->dev, "error getting pcm substream slot.\n");
 	return NULL;
 }
 
@@ -257,7 +260,7 @@
 	else if (alsa_rt->format == SNDRV_PCM_FORMAT_S24_LE)
 		dest = (u32 *) (urb->buffer);
 	else {
-		snd_printk(KERN_ERR PREFIX "Unknown sample format.");
+		dev_err(&rt->chip->dev->dev, "Unknown sample format.");
 		return;
 	}
 
@@ -307,8 +310,8 @@
 		}
 
 	if (rt->stream_state == STREAM_DISABLED) {
-		snd_printk(KERN_ERR PREFIX "internal error: "
-				"stream disabled in in-urb handler.\n");
+		dev_err(&rt->chip->dev->dev,
+			"internal error: stream disabled in in-urb handler.\n");
 		return;
 	}
 
@@ -410,7 +413,7 @@
 
 	if (!sub) {
 		mutex_unlock(&rt->stream_mutex);
-		snd_printk(KERN_ERR PREFIX "invalid stream type.\n");
+		dev_err(&rt->chip->dev->dev, "invalid stream type.\n");
 		return -EINVAL;
 	}
 
@@ -450,13 +453,13 @@
 static int usb6fire_pcm_hw_params(struct snd_pcm_substream *alsa_sub,
 		struct snd_pcm_hw_params *hw_params)
 {
-	return snd_pcm_lib_malloc_pages(alsa_sub,
-			params_buffer_bytes(hw_params));
+	return snd_pcm_lib_alloc_vmalloc_buffer(alsa_sub,
+						params_buffer_bytes(hw_params));
 }
 
 static int usb6fire_pcm_hw_free(struct snd_pcm_substream *alsa_sub)
 {
-	return snd_pcm_lib_free_pages(alsa_sub);
+	return snd_pcm_lib_free_vmalloc_buffer(alsa_sub);
 }
 
 static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub)
@@ -481,8 +484,9 @@
 				break;
 		if (rt->rate == ARRAY_SIZE(rates)) {
 			mutex_unlock(&rt->stream_mutex);
-			snd_printk("invalid rate %d in prepare.\n",
-					alsa_rt->rate);
+			dev_err(&rt->chip->dev->dev,
+				"invalid rate %d in prepare.\n",
+				alsa_rt->rate);
 			return -EINVAL;
 		}
 
@@ -494,8 +498,8 @@
 		ret = usb6fire_pcm_stream_start(rt);
 		if (ret) {
 			mutex_unlock(&rt->stream_mutex);
-			snd_printk(KERN_ERR PREFIX
-					"could not start pcm stream.\n");
+			dev_err(&rt->chip->dev->dev,
+				"could not start pcm stream.\n");
 			return ret;
 		}
 	}
@@ -560,6 +564,8 @@
 	.prepare = usb6fire_pcm_prepare,
 	.trigger = usb6fire_pcm_trigger,
 	.pointer = usb6fire_pcm_pointer,
+	.page = snd_pcm_lib_get_vmalloc_page,
+	.mmap = snd_pcm_lib_mmap_vmalloc,
 };
 
 static void usb6fire_pcm_init_urb(struct pcm_urb *urb,
@@ -648,7 +654,7 @@
 	if (ret < 0) {
 		usb6fire_pcm_buffers_destroy(rt);
 		kfree(rt);
-		snd_printk(KERN_ERR PREFIX "cannot create pcm instance.\n");
+		dev_err(&chip->dev->dev, "cannot create pcm instance.\n");
 		return ret;
 	}
 
@@ -657,15 +663,11 @@
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_ops);
 
-	ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
-			SNDRV_DMA_TYPE_CONTINUOUS,
-			snd_dma_continuous_data(GFP_KERNEL),
-			MAX_BUFSIZE, MAX_BUFSIZE);
 	if (ret) {
 		usb6fire_pcm_buffers_destroy(rt);
 		kfree(rt);
-		snd_printk(KERN_ERR PREFIX
-				"error preallocating pcm buffers.\n");
+		dev_err(&chip->dev->dev,
+			"error preallocating pcm buffers.\n");
 		return ret;
 	}
 	rt->instance = pcm;
@@ -677,25 +679,16 @@
 void usb6fire_pcm_abort(struct sfire_chip *chip)
 {
 	struct pcm_runtime *rt = chip->pcm;
-	unsigned long flags;
 	int i;
 
 	if (rt) {
 		rt->panic = true;
 
-		if (rt->playback.instance) {
-			snd_pcm_stream_lock_irqsave(rt->playback.instance, flags);
-			snd_pcm_stop(rt->playback.instance,
-					SNDRV_PCM_STATE_XRUN);
-			snd_pcm_stream_unlock_irqrestore(rt->playback.instance, flags);
-		}
+		if (rt->playback.instance)
+			snd_pcm_stop_xrun(rt->playback.instance);
 
-		if (rt->capture.instance) {
-			snd_pcm_stream_lock_irqsave(rt->capture.instance, flags);
-			snd_pcm_stop(rt->capture.instance,
-					SNDRV_PCM_STATE_XRUN);
-			snd_pcm_stream_unlock_irqrestore(rt->capture.instance, flags);
-		}
+		if (rt->capture.instance)
+			snd_pcm_stop_xrun(rt->capture.instance);
 
 		for (i = 0; i < PCM_N_URBS; i++) {
 			usb_poison_urb(&rt->in_urbs[i].instance);