diff options
| author | Agrawal, Akshu <Akshu.Agrawal@amd.com> | 2018-06-07 08:48:43 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-06-18 13:33:08 +0200 |
| commit | 6e56e5d04191aa20e08430dcb203c081fa247e93 (patch) | |
| tree | 5de4f56d4f8c1cdfdf865d50a2d97dd097172bf1 | |
| parent | ASoC: rsnd: SSI parent cares SWSP bit (diff) | |
| download | linux-6e56e5d04191aa20e08430dcb203c081fa247e93.tar.xz linux-6e56e5d04191aa20e08430dcb203c081fa247e93.zip | |
ASoC: AMD: Add NULL pointer check
Fix crash in those platforms whose machine driver does not expose
platform_info. For those platforms we rely on default value and
select I2SSP channel.
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/amd/acp-pcm-dma.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c index 77203841c535..1458b5048498 100644 --- a/sound/soc/amd/acp-pcm-dma.c +++ b/sound/soc/amd/acp-pcm-dma.c @@ -773,7 +773,8 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream, if (WARN_ON(!rtd)) return -EINVAL; - rtd->i2s_instance = pinfo->i2s_instance; + if (pinfo) + rtd->i2s_instance = pinfo->i2s_instance; if (adata->asic_type == CHIP_STONEY) { val = acp_reg_read(adata->acp_mmio, mmACP_I2S_16BIT_RESOLUTION_EN); |