diff options
| author | Shashank Sharma <shashanks@nvidia.com> | 2012-09-28 16:29:24 +0530 |
|---|---|---|
| committer | Matthew Pedro <mapedro@nvidia.com> | 2012-10-09 11:49:06 -0700 |
| commit | b02a1cb7dbb6b0815ddd8e104ad8819e847947a0 (patch) | |
| tree | c28e1ac6585ff30aefac302ecbe3c99c566f0e9b /sound | |
| parent | 49eac6c2664809abd41c0b0b368ab093bcf5a783 (diff) | |
asoc: tegra: WAR: Check AVP id before setting DMA
WAR to check souncard data's avp_id before trying to set
DMA address. An invalid avp_id can cause invlaid rtd, causing
panic in control ioctl calls.
Bug 1046249
Bug 1044761
Bug 1049940
Bug 1050152
Change-Id: Ib536220fdb92f8256c777d6fa14b66e47bc6b7be
Signed-off-by: Shashank Sharma <shashanks@nvidia.com>
Reviewed-on: http://git-master/r/134426
(cherry picked from commit 007fd7b1ae101c5be2a3d35ad11e7190862c04ca)
Reviewed-on: http://git-master/r/142493
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Tested-by: Matthew Pedro <mapedro@nvidia.com>
Reviewed-by: Winnie Hsu <whsu@nvidia.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/tegra/tegra_asoc_utils.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra_asoc_utils.c b/sound/soc/tegra/tegra_asoc_utils.c index 80d22d203fb6..99ba90d9fc7b 100644 --- a/sound/soc/tegra/tegra_asoc_utils.c +++ b/sound/soc/tegra/tegra_asoc_utils.c @@ -133,6 +133,9 @@ static int tegra_set_dma_addr(struct snd_kcontrol *kcontrol, struct snd_pcm_substream *substream; struct tegra_runtime_data *prtd; + if (data->avp_device_id < 0) + return 0; + data->avp_dma_addr = ucontrol->value.integer.value[0]; rtd = &card->rtd[data->avp_device_id]; |