ASoC: cs35l45: Checks index of cs35l45_irqs[]

Checks the index computed by the virq offset before printing the
error condition in cs35l45_spk_safe_err() handler.

Change-Id: Ib0149c24bfee995968f3e13266d0453d27e8d52e
Signed-off-by: Ricardo Rivera-Matos <[email protected]>
Signed-off-by: Vlad Karpovich <[email protected]>
Acked-by: Ricardo Rivera-Matos <[email protected]>
Acked-by: Charles Keepax <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: rriveramcrus

sound/soc/codecs/cs35l45.c

@@ -1023,7 +1023,10 @@ static irqreturn_t cs35l45_spk_safe_err(int irq, void *data)
 
 	i = irq - regmap_irq_get_virq(cs35l45->irq_data, 0);
 
-	dev_err(cs35l45->dev, "%s condition detected!\n", cs35l45_irqs[i].name);
+	if (i < 0 || i >= ARRAY_SIZE(cs35l45_irqs))
+		dev_err(cs35l45->dev, "Unspecified global error condition (%d) detected!\n", irq);
+	else
+		dev_err(cs35l45->dev, "%s condition detected!\n", cs35l45_irqs[i].name);
 
 	return IRQ_HANDLED;
 }