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ASoC: AMD: Add NULL pointer check

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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>
This commit is contained in:
Agrawal, Akshu 2018-06-07 14:48:43 +08:00 committed by Mark Brown
parent 203cdf51f2
commit 6e56e5d041
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 1 deletions
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3
sound/soc/amd/acp-pcm-dma.c
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@ -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);