[PATCH 2/5] pinctrl: keembay: Propagate errors from optional IRQ lookup

[phucduc.bui at gmail.com]

From: bui duc phuc <phucduc.bui at gmail.com>

platform_get_irq_optional() returns a positive IRQ number on success or
a negative error code on failure. For an optional IRQ, -ENXIO indicates
that no optional IRQ is available, while other errors should be propagated.

Propagate all error codes returned by platform_get_irq_optional() other
than -ENXIO.

Signed-off-by: bui duc phuc <phucduc.bui at gmail.com>
---
 drivers/pinctrl/pinctrl-keembay.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-keembay.c b/drivers/pinctrl/pinctrl-keembay.c
index 3241d3ae6219..0b65b186e3c1 100644
--- a/drivers/pinctrl/pinctrl-keembay.c
+++ b/drivers/pinctrl/pinctrl-keembay.c
@@ -1497,8 +1497,10 @@ static int keembay_gpiochip_probe(struct keembay_pinctrl *kpc,
 		int irq;
 
 		irq = platform_get_irq_optional(pdev, i);
-		if (irq <= 0)
+		if (irq == -ENXIO)
 			continue;
+		if (irq < 0)
+			return irq;
 
 		girq->parents[i]	= irq;
 		kmb_irq->line	= girq->parents[i];
-- 
2.43.0