[PATCH v2 1/1] pinctrl: microchip-sgpio: Correct the fwnode_irq_get() return value check

[Andy Shevchenko]

fwnode_irq_get() may return all possible signed values, such as Linux
error code. Fix the code to handle this properly.

Fixes: be2dc859abd4 ("pinctrl: pinctrl-microchip-sgpio: Add irq support (for sparx5)")
Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
Reviewed-by: Michael Walle <michael at walle.cc>
---
v2: added tag (Michael), fixed typo in the Subject
 drivers/pinctrl/pinctrl-microchip-sgpio.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-microchip-sgpio.c b/drivers/pinctrl/pinctrl-microchip-sgpio.c
index 6f55bf7d5e05..0771b743a940 100644
--- a/drivers/pinctrl/pinctrl-microchip-sgpio.c
+++ b/drivers/pinctrl/pinctrl-microchip-sgpio.c
@@ -864,9 +864,10 @@ static int microchip_sgpio_register_bank(struct device *dev,
 	gc->can_sleep		= !bank->is_input;
 
 	if (bank->is_input && priv->properties->flags & SGPIO_FLAGS_HAS_IRQ) {
-		int irq = fwnode_irq_get(fwnode, 0);
+		int irq;
 
-		if (irq) {
+		irq = fwnode_irq_get(fwnode, 0);
+		if (irq > 0) {
 			struct gpio_irq_chip *girq = &gc->irq;
 
 			gpio_irq_chip_set_chip(girq, &microchip_sgpio_irqchip);
-- 
2.35.1