ALSA: arm: pxa: pxa2xx-ac97-lib: fix return value check of platform_get_irq()

platform_get_irq() returns negative error number on failure, fix the
return value check in pxa2xx_ac97_hw_probe() and assign the error code
to 'ret'.

Fixes: 2548e6c ("ARM: pxa: pxa2xx-ac97-lib: use IRQ resource")
Signed-off-by: Yang Yingliang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

Author: Yang Yingliang

sound/arm/pxa2xx-ac97-lib.c

@@ -402,8 +402,10 @@ int pxa2xx_ac97_hw_probe(struct platform_device *dev)
 		goto err_clk2;
 
 	irq = platform_get_irq(dev, 0);
-	if (!irq)
+	if (irq < 0) {
+		ret = irq;
 		goto err_irq;
+	}
 
 	ret = request_irq(irq, pxa2xx_ac97_irq, 0, "AC97", NULL);
 	if (ret < 0)