summaryrefslogtreecommitdiff
path: root/sound
diff options
context:
space:
mode:
authorJohan Hovold <johan@kernel.org>2017-07-12 17:55:29 +0200
committerMark Brown <broonie@kernel.org>2017-07-17 15:50:32 +0100
commitc641e5b207ed7dfaa692820aeb5b6dde3de3e9b0 (patch)
tree32db6d91738de6ae0b00b6816068eb0ad109faae /sound
parent5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff)
ASoC: fix pcm-creation regression
This reverts commit 99b04f4c4051 ("ASoC: add Component level pcm_new/pcm_free"), which started calling the pcm_new callback for every component in a *card* when creating a new pcm, something which does not seem to make any sense. This specifically led to memory leaks in systems with more than one platform component and where DMA memory is allocated in the platform-driver callback. For example, when both mcasp devices are being used on an am335x board, DMA memory would be allocated twice for every DAI link during probe. When CONFIG_SND_VERBOSE_PROCFS was set this fortunately also led to warnings such as: WARNING: CPU: 0 PID: 565 at ../fs/proc/generic.c:346 proc_register+0x110/0x154 proc_dir_entry 'sub0/prealloc' already registered Since there seems to be no users of the new component callbacks, and the current implementation introduced a regression, let's revert the offending commit for now. Fixes: 99b04f4c4051 ("ASoC: add Component level pcm_new/pcm_free") Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable <stable@vger.kernel.org> # 4.10
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-core.c25
-rw-r--r--sound/soc/soc-pcm.c32
2 files changed, 9 insertions, 48 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 921622a01944..c240e13ba057 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3171,8 +3171,6 @@ static int snd_soc_component_initialize(struct snd_soc_component *component,
component->remove = component->driver->remove;
component->suspend = component->driver->suspend;
component->resume = component->driver->resume;
- component->pcm_new = component->driver->pcm_new;
- component->pcm_free = component->driver->pcm_free;
dapm = &component->dapm;
dapm->dev = dev;
@@ -3360,25 +3358,6 @@ static void snd_soc_platform_drv_remove(struct snd_soc_component *component)
platform->driver->remove(platform);
}
-static int snd_soc_platform_drv_pcm_new(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_platform *platform = rtd->platform;
-
- if (platform->driver->pcm_new)
- return platform->driver->pcm_new(rtd);
- else
- return 0;
-}
-
-static void snd_soc_platform_drv_pcm_free(struct snd_pcm *pcm)
-{
- struct snd_soc_pcm_runtime *rtd = pcm->private_data;
- struct snd_soc_platform *platform = rtd->platform;
-
- if (platform->driver->pcm_free)
- platform->driver->pcm_free(pcm);
-}
-
/**
* snd_soc_add_platform - Add a platform to the ASoC core
* @dev: The parent device for the platform
@@ -3402,10 +3381,6 @@ int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
platform->component.probe = snd_soc_platform_drv_probe;
if (platform_drv->remove)
platform->component.remove = snd_soc_platform_drv_remove;
- if (platform_drv->pcm_new)
- platform->component.pcm_new = snd_soc_platform_drv_pcm_new;
- if (platform_drv->pcm_free)
- platform->component.pcm_free = snd_soc_platform_drv_pcm_free;
#ifdef CONFIG_DEBUG_FS
platform->component.debugfs_prefix = "platform";
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index dcc5ece08668..553f7a76743c 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2628,25 +2628,12 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream)
return ret;
}
-static void soc_pcm_free(struct snd_pcm *pcm)
-{
- struct snd_soc_pcm_runtime *rtd = pcm->private_data;
- struct snd_soc_component *component;
-
- list_for_each_entry(component, &rtd->card->component_dev_list,
- card_list) {
- if (component->pcm_free)
- component->pcm_free(pcm);
- }
-}
-
/* create a new pcm */
int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
{
struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_dai *codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct snd_soc_component *component;
struct snd_pcm *pcm;
char new_name[64];
int ret = 0, playback = 0, capture = 0;
@@ -2756,18 +2743,17 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
if (capture)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops);
- list_for_each_entry(component, &rtd->card->component_dev_list, card_list) {
- if (component->pcm_new) {
- ret = component->pcm_new(rtd);
- if (ret < 0) {
- dev_err(component->dev,
- "ASoC: pcm constructor failed: %d\n",
- ret);
- return ret;
- }
+ if (platform->driver->pcm_new) {
+ ret = platform->driver->pcm_new(rtd);
+ if (ret < 0) {
+ dev_err(platform->dev,
+ "ASoC: pcm constructor failed: %d\n",
+ ret);
+ return ret;
}
}
- pcm->private_free = soc_pcm_free;
+
+ pcm->private_free = platform->driver->pcm_free;
out:
dev_info(rtd->card->dev, "%s <-> %s mapping ok\n",
(rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name,