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Diffstat (limited to 'sound/soc/soc-pcm.c')
-rw-r--r--sound/soc/soc-pcm.c52
1 files changed, 30 insertions, 22 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d4498723b375..591f0f3074c5 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -190,7 +190,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
/* startup the audio subsystem */
- if (cpu_dai->driver->ops->startup) {
+ if (cpu_dai->driver->ops && cpu_dai->driver->ops->startup) {
ret = cpu_dai->driver->ops->startup(substream, cpu_dai);
if (ret < 0) {
dev_err(cpu_dai->dev, "ASoC: can't open interface"
@@ -208,7 +208,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
}
}
- if (codec_dai->driver->ops->startup) {
+ if (codec_dai->driver->ops && codec_dai->driver->ops->startup) {
ret = codec_dai->driver->ops->startup(substream, codec_dai);
if (ret < 0) {
dev_err(codec_dai->dev, "ASoC: can't open codec"
@@ -463,7 +463,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
}
}
- if (codec_dai->driver->ops->prepare) {
+ if (codec_dai->driver->ops && codec_dai->driver->ops->prepare) {
ret = codec_dai->driver->ops->prepare(substream, codec_dai);
if (ret < 0) {
dev_err(codec_dai->dev, "ASoC: DAI prepare error: %d\n",
@@ -472,7 +472,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
}
}
- if (cpu_dai->driver->ops->prepare) {
+ if (cpu_dai->driver->ops && cpu_dai->driver->ops->prepare) {
ret = cpu_dai->driver->ops->prepare(substream, cpu_dai);
if (ret < 0) {
dev_err(cpu_dai->dev, "ASoC: DAI prepare error: %d\n",
@@ -523,7 +523,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
}
}
- if (codec_dai->driver->ops->hw_params) {
+ if (codec_dai->driver->ops && codec_dai->driver->ops->hw_params) {
ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai);
if (ret < 0) {
dev_err(codec_dai->dev, "ASoC: can't set %s hw params:"
@@ -532,7 +532,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
}
}
- if (cpu_dai->driver->ops->hw_params) {
+ if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_params) {
ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai);
if (ret < 0) {
dev_err(cpu_dai->dev, "ASoC: %s hw params failed: %d\n",
@@ -559,11 +559,11 @@ out:
return ret;
platform_err:
- if (cpu_dai->driver->ops->hw_free)
+ if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free)
cpu_dai->driver->ops->hw_free(substream, cpu_dai);
interface_err:
- if (codec_dai->driver->ops->hw_free)
+ if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free)
codec_dai->driver->ops->hw_free(substream, codec_dai);
codec_err:
@@ -600,10 +600,10 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
platform->driver->ops->hw_free(substream);
/* now free hw params for the DAIs */
- if (codec_dai->driver->ops->hw_free)
+ if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free)
codec_dai->driver->ops->hw_free(substream, codec_dai);
- if (cpu_dai->driver->ops->hw_free)
+ if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free)
cpu_dai->driver->ops->hw_free(substream, cpu_dai);
mutex_unlock(&rtd->pcm_mutex);
@@ -618,7 +618,7 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret;
- if (codec_dai->driver->ops->trigger) {
+ if (codec_dai->driver->ops && codec_dai->driver->ops->trigger) {
ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai);
if (ret < 0)
return ret;
@@ -630,7 +630,7 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
return ret;
}
- if (cpu_dai->driver->ops->trigger) {
+ if (cpu_dai->driver->ops && cpu_dai->driver->ops->trigger) {
ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai);
if (ret < 0)
return ret;
@@ -647,19 +647,20 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret;
- if (codec_dai->driver->ops->bespoke_trigger) {
+ if (codec_dai->driver->ops &&
+ codec_dai->driver->ops->bespoke_trigger) {
ret = codec_dai->driver->ops->bespoke_trigger(substream, cmd, codec_dai);
if (ret < 0)
return ret;
}
- if (platform->driver->bespoke_trigger) {
+ if (platform->driver->ops && platform->driver->bespoke_trigger) {
ret = platform->driver->bespoke_trigger(substream, cmd);
if (ret < 0)
return ret;
}
- if (cpu_dai->driver->ops->bespoke_trigger) {
+ if (cpu_dai->driver->ops && cpu_dai->driver->ops->bespoke_trigger) {
ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai);
if (ret < 0)
return ret;
@@ -684,10 +685,10 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
if (platform->driver->ops && platform->driver->ops->pointer)
offset = platform->driver->ops->pointer(substream);
- if (cpu_dai->driver->ops->delay)
+ if (cpu_dai->driver->ops && cpu_dai->driver->ops->delay)
delay += cpu_dai->driver->ops->delay(substream, cpu_dai);
- if (codec_dai->driver->ops->delay)
+ if (codec_dai->driver->ops && codec_dai->driver->ops->delay)
delay += codec_dai->driver->ops->delay(substream, codec_dai);
if (platform->driver->delay)
@@ -1037,6 +1038,12 @@ static int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream)
struct snd_pcm_substream *be_substream =
snd_soc_dpcm_get_substream(be, stream);
+ if (!be_substream) {
+ dev_err(be->dev, "ASoC: no backend %s stream\n",
+ stream ? "capture" : "playback");
+ continue;
+ }
+
/* is this op for this BE ? */
if (!snd_soc_dpcm_be_can_update(fe, be, stream))
continue;
@@ -1054,7 +1061,8 @@ static int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream)
(be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE))
continue;
- dev_dbg(be->dev, "ASoC: open BE %s\n", be->dai_link->name);
+ dev_dbg(be->dev, "ASoC: open %s BE %s\n",
+ stream ? "capture" : "playback", be->dai_link->name);
be_substream->runtime = be->dpcm[stream].runtime;
err = soc_pcm_open(be_substream);
@@ -1673,7 +1681,7 @@ static int soc_pcm_ioctl(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_platform *platform = rtd->platform;
- if (platform->driver->ops->ioctl)
+ if (platform->driver->ops && platform->driver->ops->ioctl)
return platform->driver->ops->ioctl(substream, cmd, arg);
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
@@ -1934,8 +1942,8 @@ int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute)
dev_dbg(be->dev, "ASoC: BE digital mute %s\n", be->dai_link->name);
- if (drv->ops->digital_mute && dai->playback_active)
- drv->ops->digital_mute(dai, mute);
+ if (drv->ops && drv->ops->digital_mute && dai->playback_active)
+ drv->ops->digital_mute(dai, mute);
}
return 0;
@@ -2224,7 +2232,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params);
int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_platform *platform)
{
- if (platform->driver->ops->trigger)
+ if (platform->driver->ops && platform->driver->ops->trigger)
return platform->driver->ops->trigger(substream, cmd);
return 0;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.