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Date:   Mon, 15 Apr 2019 21:00:26 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Juergen Gross <jgross@...e.com>,
        Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>,
        Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 5.0 056/117] ALSA: xen-front: Do not use stream buffer size before it is set

From: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>

commit 8b030a57e35a0efc1a8aa18bb10555bc5066ac40 upstream.

This fixes the regression introduced while moving to Xen shared
buffer implementation.

Fixes: 58f9d806d16a ("ALSA: xen-front: Use Xen common shared buffer implementation")
Reviewed-by: Juergen Gross <jgross@...e.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>
Cc: <stable@...r.kernel.org> # v5.0+
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/xen/xen_snd_front_alsa.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/xen/xen_snd_front_alsa.c
+++ b/sound/xen/xen_snd_front_alsa.c
@@ -441,7 +441,7 @@ static int shbuf_setup_backstore(struct
 {
 	int i;
 
-	stream->buffer = alloc_pages_exact(stream->buffer_sz, GFP_KERNEL);
+	stream->buffer = alloc_pages_exact(buffer_sz, GFP_KERNEL);
 	if (!stream->buffer)
 		return -ENOMEM;
 


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