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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-09-27 20:55:09 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-10-04 09:40:57 +0200 |
| commit | f4a31facfa80df2f440a2fdc2b7f58d6c23925b0 (patch) | |
| tree | 649047204ecff7ab14872eb2a5ed8faf3e05cde5 /drivers/pinctrl | |
| parent | 66db794ad54ce49d4fd564a16f682f257f608655 (diff) | |
| download | linux-stable-f4a31facfa80df2f440a2fdc2b7f58d6c23925b0.tar.gz linux-stable-f4a31facfa80df2f440a2fdc2b7f58d6c23925b0.tar.bz2 linux-stable-f4a31facfa80df2f440a2fdc2b7f58d6c23925b0.zip | |
pinctrl: wpcm450: Correct the fwnode_irq_get() return value check
fwnode_irq_get() can return zero to indicate IRQ mapping errors.
Handle this case by skipping the interrupt resource.
Fixes: a1d1e0e3d80a ("pinctrl: nuvoton: Add driver for WPCM450")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20220927175509.15695-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c index 0dbeb91f0bf2..8193b92da403 100644 --- a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c +++ b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c @@ -1081,10 +1081,13 @@ static int wpcm450_gpio_register(struct platform_device *pdev, girq->num_parents = 0; for (i = 0; i < WPCM450_NUM_GPIO_IRQS; i++) { - int irq = fwnode_irq_get(child, i); + int irq; + irq = fwnode_irq_get(child, i); if (irq < 0) break; + if (!irq) + continue; girq->parents[i] = irq; girq->num_parents++; |