From 9a20332ab373b1f8f947e0a9c923652b32dab031 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 23 Nov 2018 18:18:30 +0100
Subject: [PATCH] ALSA: sparc: Fix invalid snd_free_pages() at error path
Git-commit: 9a20332ab373b1f8f947e0a9c923652b32dab031
Patch-mainline: v4.20-rc5
References: bsc#1051510

Some spurious calls of snd_free_pages() have been overlooked and
remain in the error paths of sparc cs4231 driver code.  Since
runtime->dma_area is managed by the PCM core helper, we shouldn't
release manually.

Drop the superfluous calls.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 sound/sparc/cs4231.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index e73c962590eb..079063d8038d 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -1146,10 +1146,8 @@ static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
 	runtime->hw = snd_cs4231_playback;
 
 	err = snd_cs4231_open(chip, CS4231_MODE_PLAY);
-	if (err < 0) {
-		snd_free_pages(runtime->dma_area, runtime->dma_bytes);
+	if (err < 0)
 		return err;
-	}
 	chip->playback_substream = substream;
 	chip->p_periods_sent = 0;
 	snd_pcm_set_sync(substream);
@@ -1167,10 +1165,8 @@ static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
 	runtime->hw = snd_cs4231_capture;
 
 	err = snd_cs4231_open(chip, CS4231_MODE_RECORD);
-	if (err < 0) {
-		snd_free_pages(runtime->dma_area, runtime->dma_bytes);
+	if (err < 0)
 		return err;
-	}
 	chip->capture_substream = substream;
 	chip->c_periods_sent = 0;
 	snd_pcm_set_sync(substream);
-- 
2.19.1