diff options
| author | Scott Peterson <speterson@nvidia.com> | 2013-06-07 14:44:55 -0700 |
|---|---|---|
| committer | Harshada Kale <hkale@nvidia.com> | 2013-06-10 07:35:51 -0700 |
| commit | 1aee915bee085bd01b58d862a29e9fe8fbfa7860 (patch) | |
| tree | aa27020a8a636c78c346ef153fbe6be9ffc85f28 /sound | |
| parent | b62ddb11c0b68fc563dbb0f5f709268d1bb6c4ae (diff) | |
asoc: tegra: Roth: check NULL pointers
Check for NULL pointer in audio driver to
avoid crash when powering down tfa8997 device.
Bug 1300642
Change-Id: I367483a82e03aff5c02c398724cfa61a86cc94e3
Signed-off-by: Scott Peterson <speterson@nvidia.com>
Reviewed-on: http://git-master/r/236901
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Rahul Mittal <rmittal@nvidia.com>
Tested-by: Rahul Mittal <rmittal@nvidia.com>
Reviewed-by: Niranjan Wartikar <nwartikar@nvidia.com>
Reviewed-by: Sumit Bhattacharya <sumitb@nvidia.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/tegra/tegra_rt5640.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/tegra/tegra_rt5640.c b/sound/soc/tegra/tegra_rt5640.c index 8bf7c1034d34..873330a1b194 100644 --- a/sound/soc/tegra/tegra_rt5640.c +++ b/sound/soc/tegra/tegra_rt5640.c @@ -558,7 +558,7 @@ static int tegra_set_tfa9887_powerdown(struct snd_kcontrol *kcontrol, data->tfa9887_powerdown = ucontrol->value.integer.value[0]; //printk("tegra_set_tfa9887_powerdown powerdown=%d ref=%d\n",data->tfa9887_powerdown,i2s_tfa->playback_ref_count); - if (i2s_tfa->playback_ref_count <= 1) { + if (i2s_tfa && (i2s_tfa->playback_ref_count <= 1)) { Tfa9887_Powerdown(data->tfa9887_powerdown); machine->tfa9887_on = !data->tfa9887_powerdown; } |