ASoC: cs35l56: Accept values greater than 0 as IRQ numbers

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@opensource.cirrus.com>
Fixes: 8a731fd3 ("ASoC: cs35l56: Move utility functions to shared file")
Link: https://msgid.link/r/20240617135338.82006-1-simont@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs35l56-shared.c

@@ -393,7 +393,7 @@ 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,