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ALSA: hda - Add NULL check to all PM ops in hda_intel.c 

Since devptr can be NULL due to asynchronous probe, all PM ops should
have NULL checks at the beginning.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2014-07-16 16:31:04 +02:00
parent 6217e5ede2
commit 2d9772ef65
1 changed files with 35 additions and 10 deletions
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45
sound/pci/hda/hda_intel.c
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@ -772,10 +772,15 @@ static int azx_suspend(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
struct azx *chip;
struct hda_intel *hda;
struct azx_pcm *p;
if (!card)
return 0;
chip = card->private_data;
hda = container_of(chip, struct hda_intel, chip);
if (chip->disabled || hda->init_failed)
return 0;
@ -806,9 +811,14 @@ static int azx_resume(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
struct azx *chip;
struct hda_intel *hda;
if (!card)
return 0;
chip = card->private_data;
hda = container_of(chip, struct hda_intel, chip);
if (chip->disabled || hda->init_failed)
return 0;
@ -844,9 +854,14 @@ static int azx_resume(struct device *dev)
static int azx_runtime_suspend(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
struct azx *chip;
struct hda_intel *hda;
if (!card)
return 0;
chip = card->private_data;
hda = container_of(chip, struct hda_intel, chip);
if (chip->disabled || hda->init_failed)
return 0;
@ -869,12 +884,17 @@ static int azx_runtime_suspend(struct device *dev)
static int azx_runtime_resume(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
struct azx *chip;
struct hda_intel *hda;
struct hda_bus *bus;
struct hda_codec *codec;
int status;
if (!card)
return 0;
chip = card->private_data;
hda = container_of(chip, struct hda_intel, chip);
if (chip->disabled || hda->init_failed)
return 0;
@ -910,9 +930,14 @@ static int azx_runtime_resume(struct device *dev)
static int azx_runtime_idle(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
struct azx *chip;
struct hda_intel *hda;
if (!card)
return 0;
chip = card->private_data;
hda = container_of(chip, struct hda_intel, chip);
if (chip->disabled || hda->init_failed)
return 0;