IRQ lookup functions such as those in ACPI can return error values when
an IRQ is not defined. The i2c core driver converts the error codes to a
value of 0 and the SPI bus driver passes them unaltered to client device
drivers.
The cs35l56 driver should only accept positive non-zero values as IRQ
numbers.
Signed-off-by: Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>
Fixes: 8a731fd37f8b ("ASoC: cs35l56: Move utility functions to shared file")
---
sound/soc/codecs/cs35l56-shared.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-shared.c
index 27869e14e9c8..880228f89baf 100644
--- a/sound/soc/codecs/cs35l56-shared.c
+++ b/sound/soc/codecs/cs35l56-shared.c
@@ -397,7 +397,7 @@ int cs35l56_irq_request(struct cs35l56_base *cs35l56_base, int irq)
{
int ret;
- if (!irq)
+ if (irq < 1)
return 0;
ret = devm_request_threaded_irq(cs35l56_base->dev, irq, NULL, cs35l56_irq,
--
2.34.1
