diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2021-03-09 10:08:08 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-03-12 14:26:30 +0000 |
| commit | 1db19c151819dea7a0dc4d888250d25abaf229ca (patch) | |
| tree | 12489298aff412a454aaa3fc76f7a60195e7116f /sound/soc/soc-pcm.c | |
| parent | c393281a3c1cb252735c46efbf8501a3782f9afa (diff) | |
| download | linux-1db19c151819dea7a0dc4d888250d25abaf229ca.tar.bz2 | |
ASoC: soc-pcm: fixup dpcm_be_dai_startup() user count
At dpcm_be_dai_startup_unwind(), it indicates error message at (1)
if this function was called with no users.
But, it doesn't use "continue" here. Thus, users will be a
negative number at (2)
void dpcm_be_dai_startup_unwind(...)
{
...
for_each_dpcm_be(...) {
...
(1) if (be->dpcm[stream].users == 0)
dev_err(...);
(2) if (--be->dpcm[stream].users != 0)
continue;
At dpcm_be_dai_startup(), it indicates error message if
user reached to MAX USERS at (A).
But, it doesn't use "continue" here. Thus, it will be over
MAX USERS at (B).
int dpcm_be_dai_startup(...)
{
...
for_each_dpcm_be(...) {
...
(A) if (be->dpcm[stream].users == DPCM_MAX_BE_USERS)
dev_err(...);
(B) if (be->dpcm[stream].users++ != 0)
continue;
These are just bug. This patch fixup these.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87czw9uoav.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-pcm.c')
| -rw-r--r-- | sound/soc/soc-pcm.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 910a6afe9f48..626d6e0a3a15 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1432,10 +1432,12 @@ static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, struct snd_pcm_substream *be_substream = snd_soc_dpcm_get_substream(be, stream); - if (be->dpcm[stream].users == 0) + if (be->dpcm[stream].users == 0) { dev_err(be->dev, "ASoC: no users %s at close - state %d\n", stream ? "capture" : "playback", be->dpcm[stream].state); + continue; + } if (--be->dpcm[stream].users != 0) continue; @@ -1472,10 +1474,12 @@ int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) continue; /* first time the dpcm is open ? */ - if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) + if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) { dev_err(be->dev, "ASoC: too many users %s at open %d\n", stream ? "capture" : "playback", be->dpcm[stream].state); + continue; + } if (be->dpcm[stream].users++ != 0) continue; @@ -1517,10 +1521,12 @@ unwind: if (!snd_soc_dpcm_be_can_update(fe, be, stream)) continue; - if (be->dpcm[stream].users == 0) + if (be->dpcm[stream].users == 0) { dev_err(be->dev, "ASoC: no users %s at close %d\n", stream ? "capture" : "playback", be->dpcm[stream].state); + continue; + } if (--be->dpcm[stream].users != 0) continue; |