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ASoC: rt5514: Fix the issue that the variable dereferenced before checking

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The patch fixes the issue that variable dereferenced before checking
'rt5514_dsp->substream'. Move the assignment to after the variable
checking of 'rt5514_dsp->substream'.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Oder Chiou 2016-06-17 11:02:23 +08:00 committed by Mark Brown
parent 6eebf35b0e
commit b63d4d13ac
1 changed files with 2 additions and 1 deletions
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3
sound/soc/codecs/rt5514-spi.c
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@ -80,7 +80,7 @@ static void rt5514_spi_copy_work(struct work_struct *work)
{
struct rt5514_dsp *rt5514_dsp =
container_of(work, struct rt5514_dsp, copy_work.work);
struct snd_pcm_runtime *runtime = rt5514_dsp->substream->runtime;
struct snd_pcm_runtime *runtime;
size_t period_bytes, truncated_bytes = 0;
mutex_lock(&rt5514_dsp->dma_lock);
@ -89,6 +89,7 @@ static void rt5514_spi_copy_work(struct work_struct *work)
goto done;
}
runtime = rt5514_dsp->substream->runtime;
period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream);
if (rt5514_dsp->buf_size - rt5514_dsp->dsp_offset < period_bytes)