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https://github.com/Divested-Mobile/DivestOS-Build.git
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51 lines
1.4 KiB
Diff
51 lines
1.4 KiB
Diff
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From 75ed08a822cf378ffed0d2f177d06555bd77a006 Mon Sep 17 00:00:00 2001
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From: Walter Yang <yandongy@codeaurora.org>
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Date: Thu, 2 Mar 2017 12:13:34 +0800
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Subject: ASoC: Add backend user count checking
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Add backend user count checking to protect the index
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boundary.
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Change-Id: Ic1b61d1f7130252cc54da0b16553858714988dbd
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CRs-Fixed: 2009216
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Signed-off-by: Walter Yang <yandongy@codeaurora.org>
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---
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sound/soc/soc-compress.c | 5 +++++
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sound/soc/soc-pcm.c | 4 ++++
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2 files changed, 9 insertions(+)
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diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
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index 8902662..3b30818 100644
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--- a/sound/soc/soc-compress.c
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+++ b/sound/soc/soc-compress.c
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@@ -569,6 +569,11 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
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cstream, &async_domain);
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} else {
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be_list[j++] = be;
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+ if (j == DPCM_MAX_BE_USERS) {
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+ dev_dbg(fe->dev,
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+ "ASoC: MAX backend users!\n");
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+ break;
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+ }
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}
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}
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for (i = 0; i < j; i++) {
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diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
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index 7e2b2f3..21e503c 100644
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--- a/sound/soc/soc-pcm.c
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+++ b/sound/soc/soc-pcm.c
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@@ -1851,6 +1851,10 @@ void dpcm_be_dai_prepare_async(struct snd_soc_pcm_runtime *fe, int stream,
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dpcm, domain);
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} else {
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dpcm_async[i++] = dpcm;
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+ if (i == DPCM_MAX_BE_USERS) {
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+ dev_dbg(fe->dev, "ASoC: MAX backend users!\n");
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+ break;
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+ }
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}
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}
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--
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cgit v1.1
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