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From b9626bd6238256bd6f122f42400a143c2bf06b02 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 9 Dec 2019 10:49:39 +0100
Subject: [PATCH] ALSA: line6: Use managed buffer allocation
Git-commit: b9626bd6238256bd6f122f42400a143c2bf06b02
Patch-mainline: v5.6-rc1
References: jsc#SLE-16518

Clean up the drivers with the new managed buffer allocation API.
The superfluous snd_pcm_lib_malloc_pages() and
snd_pcm_lib_free_pages() calls are dropped.

Link: https://lore.kernel.org/r/20191209094943.14984-68-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 sound/usb/line6/pcm.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c
index 9c437c716cfd..fdbdfb7bce92 100644
--- a/sound/usb/line6/pcm.c
+++ b/sound/usb/line6/pcm.c
@@ -359,13 +359,6 @@ int snd_line6_hw_params(struct snd_pcm_substream *substream,
 	if (ret < 0)
 		goto error;
 
-	ret = snd_pcm_lib_malloc_pages(substream,
-				       params_buffer_bytes(hw_params));
-	if (ret < 0) {
-		line6_buffer_release(line6pcm, pstr, LINE6_STREAM_PCM);
-		goto error;
-	}
-
 	pstr->period = params_period_bytes(hw_params);
  error:
 	mutex_unlock(&line6pcm->state_mutex);
@@ -381,7 +374,7 @@ int snd_line6_hw_free(struct snd_pcm_substream *substream)
 	mutex_lock(&line6pcm->state_mutex);
 	line6_buffer_release(line6pcm, pstr, LINE6_STREAM_PCM);
 	mutex_unlock(&line6pcm->state_mutex);
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 
@@ -501,8 +494,8 @@ static int snd_line6_new_pcm(struct usb_line6 *line6, struct snd_pcm **pcm_ret)
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_line6_capture_ops);
 
 	/* pre-allocation of buffers */
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
-					      NULL, 64 * 1024, 128 * 1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
+				       NULL, 64 * 1024, 128 * 1024);
 	return 0;
 }
 
-- 
2.16.4