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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2022-09-06 14:50:21 +0300
committerLinus Walleij <linus.walleij@linaro.org>2022-09-08 10:34:27 +0200
commit6323f916686d4e9d299a53114b28ecaf833422cd (patch)
treeab977127d497e74f152d1c438a44d03c82b8c8f5 /drivers/pinctrl
parentpinctrl: ingenic: Switch to use fwnode instead of of_node (diff)
downloadwireguard-linux-6323f916686d4e9d299a53114b28ecaf833422cd.tar.xz
wireguard-linux-6323f916686d4e9d299a53114b28ecaf833422cd.zip
pinctrl: microchip-sgpio: Correct the fwnode_irq_get() return value check
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@linux.intel.com> Reviewed-by: Michael Walle <michael@walle.cc> Link: https://lore.kernel.org/r/20220906115021.8661-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/pinctrl-microchip-sgpio.c5
1 files 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);