diff options
| author | Sivacharan Paka <sipaka@codeaurora.org> | 2017-03-02 12:13:34 +0800 |
|---|---|---|
| committer | Ariel Yin <ayin@google.com> | 2017-05-24 20:54:36 +0000 |
| commit | 4e51b93189edfdc1356737b1ac59be596d93b6f8 (patch) | |
| tree | c666bec68d7a19bfdac1f3c8da94b6187b3f2e9c | |
| parent | 3c633fef2085a4eee017b9c40985bcee28539b8b (diff) | |
ASoC: Add backend user count checkingandroid-lego-7.1.1_r0.5
Add backend user count checking to protect the index
boundary.
Bug: 33751424
Change-Id: Ic1b61d1f7130252cc54da0b16553858714988dbd
CRs-Fixed: 2009216
Signed-off-by: Walter Yang <yandongy@codeaurora.org>
| -rw-r--r-- | sound/soc/soc-compress.c | 5 | ||||
| -rw-r--r-- | sound/soc/soc-pcm.c | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 026e51b5ed12..bec8016937a2 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -573,6 +573,11 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, cstream, &async_domain); } else { be_list[j++] = be; + if (j == DPCM_MAX_BE_USERS) { + dev_dbg(fe->dev, + "ASoC: MAX backend users!\n"); + break; + } } } for (i = 0; i < j; i++) { diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 425250cc4a64..712ef982c271 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1872,6 +1872,10 @@ void dpcm_be_dai_prepare_async(struct snd_soc_pcm_runtime *fe, int stream, dpcm, domain); } else { dpcm_async[i++] = dpcm; + if (i == DPCM_MAX_BE_USERS) { + dev_dbg(fe->dev, "ASoC: MAX backend users!\n"); + break; + } } } |