If the rt5514 spi driver is loaded, but the snd_soc_platform_driver is not
loaded by the correct DAI settings, the NULL pointer will be gotten by
snd_soc_platform_get_drvdata in the resume function.
Signed-off-by: Oder Chiou <oder_chiou@xxxxxxxxxxx>
---
sound/soc/codecs/rt5514-spi.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c
index a7604b9..4339f23 100644
--- a/sound/soc/codecs/rt5514-spi.c
+++ b/sound/soc/codecs/rt5514-spi.c
@@ -483,10 +483,13 @@ static int __maybe_unused rt5514_resume(struct device *dev)
if (device_may_wakeup(dev))
disable_irq_wake(irq);
- if (rt5514_dsp->substream) {
- rt5514_spi_burst_read(RT5514_IRQ_CTRL, (u8 *)&buf, sizeof(buf));
- if (buf[0] & RT5514_IRQ_STATUS_BIT)
- rt5514_schedule_copy(rt5514_dsp);
+ if (rt5514_dsp) {
+ if (rt5514_dsp->substream) {
+ rt5514_spi_burst_read(RT5514_IRQ_CTRL, (u8 *)&buf,
+ sizeof(buf));
+ if (buf[0] & RT5514_IRQ_STATUS_BIT)
+ rt5514_schedule_copy(rt5514_dsp);
+ }
}
return 0;
--
2.7.4
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