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ASoC: check for substream not channels_min in pcm engines 

This is a follow up on 53dea36c70 which fixes the other affected
pcm engines.

Description from 53dea36c70c1857:
 Don't rely on the codec's channels_min information to decide wheter or
 not allocate a substream's DMA buffer. Rather check if the substream
 itself was allocated previously.

Without this patch I was seeing null-pointer dereferenc in atmel-pcm.

Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Joachim Eastwood 2012-01-01 01:58:44 +01:00 committed by Mark Brown
parent 739be96ab8
commit 25e9e7565f
13 changed files with 25 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sound/soc/atmel/atmel-pcm.c
View File

@ -367,7 +367,6 @@ static u64 atmel_pcm_dmamask = 0xffffffff;
static int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -376,14 +375,14 @@ static int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = atmel_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
pr_debug("atmel-pcm:"
"Allocating PCM capture DMA buffer\n");
ret = atmel_pcm_preallocate_dma_buffer(pcm,

5
sound/soc/blackfin/bf5xx-ac97-pcm.c
View File

@ -421,7 +421,6 @@ static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
static int bf5xx_pcm_ac97_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -431,14 +430,14 @@ static int bf5xx_pcm_ac97_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)

5
sound/soc/blackfin/bf5xx-i2s-pcm.c
View File

@ -260,7 +260,6 @@ static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -270,14 +269,14 @@ static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)

5
sound/soc/blackfin/bf5xx-tdm-pcm.c
View File

@ -286,7 +286,6 @@ static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
static int bf5xx_pcm_tdm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -295,14 +294,14 @@ static int bf5xx_pcm_tdm_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)

5
sound/soc/davinci/davinci-pcm.c
View File

@ -831,7 +831,6 @@ static u64 davinci_pcm_dmamask = 0xffffffff;
static int davinci_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret;
@ -840,7 +839,7 @@ static int davinci_pcm_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = davinci_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK,
pcm_hardware_playback.buffer_bytes_max);
@ -848,7 +847,7 @@ static int davinci_pcm_new(struct snd_soc_pcm_runtime *rtd)
return ret;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = davinci_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE,
pcm_hardware_capture.buffer_bytes_max);

5
sound/soc/ep93xx/ep93xx-pcm.c
View File

@ -286,7 +286,6 @@ static u64 ep93xx_pcm_dmamask = 0xffffffff;
static int ep93xx_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -295,14 +294,14 @@ static int ep93xx_pcm_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = ep93xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
return ret;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = ep93xx_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)

5
sound/soc/jz4740/jz4740-pcm.c
View File

@ -302,7 +302,6 @@ static u64 jz4740_pcm_dmamask = DMA_BIT_MASK(32);
static int jz4740_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -312,14 +311,14 @@ static int jz4740_pcm_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = jz4740_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto err;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = jz4740_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)

5
sound/soc/kirkwood/kirkwood-dma.c
View File

@ -315,7 +315,6 @@ static int kirkwood_dma_preallocate_dma_buffer(struct snd_pcm *pcm,
static int kirkwood_dma_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret;
@ -324,14 +323,14 @@ static int kirkwood_dma_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = kirkwood_dma_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
return ret;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = kirkwood_dma_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)

5
sound/soc/mid-x86/sst_platform.c
View File

@ -446,13 +446,12 @@ static void sst_pcm_free(struct snd_pcm *pcm)
static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int retval = 0;
pr_debug("sst_pcm_new called\n");
if (dai->driver->playback.channels_min ||
dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
SNDRV_DMA_TYPE_CONTINUOUS,
snd_dma_continuous_data(GFP_KERNEL),

5
sound/soc/omap/omap-pcm.c
View File

@ -378,7 +378,6 @@ static void omap_pcm_free_dma_buffers(struct snd_pcm *pcm)
static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -387,14 +386,14 @@ static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(64);
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = omap_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = omap_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)

5
sound/soc/samsung/dma.c
View File

@ -403,7 +403,6 @@ static u64 dma_mask = DMA_BIT_MASK(32);
static int dma_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -414,14 +413,14 @@ static int dma_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)

3
sound/soc/samsung/idma.c
View File

@ -387,7 +387,6 @@ static u64 idma_mask = DMA_BIT_MASK(32);
static int idma_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -396,7 +395,7 @@ static int idma_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
if (dai->driver->playback.channels_min)
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = preallocate_idma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);

5
sound/soc/tegra/tegra_pcm.c
View File

@ -330,7 +330,6 @@ static u64 tegra_dma_mask = DMA_BIT_MASK(32);
static int tegra_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct snd_pcm *pcm = rtd->pcm;
int ret = 0;
@ -339,14 +338,14 @@ static int tegra_pcm_new(struct snd_soc_pcm_runtime *rtd)
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
if (dai->driver->playback.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = tegra_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto err;
}
if (dai->driver->capture.channels_min) {
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = tegra_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)