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pinctrl: pistachio: Correct the fwnode_irq_get() return value check 

fwnode_irq_get() may return all possible signed values, such as Linux
error code or 0. Fix the code to handle this properly.

Fixes: 1074e1d23a ("pinctrl: pistachio: Switch to use fwnode instead of")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908094323.31965-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2022-09-08 12:43:23 +03:00 committed by Linus Walleij
parent 1a41d1e5c8
commit 88d60d7d94
1 changed files with 6 additions and 0 deletions
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6
drivers/pinctrl/pinctrl-pistachio.c
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@ -1374,8 +1374,14 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl)
ret = fwnode_irq_get(child, 0);
if (ret < 0) {
fwnode_handle_put(child);
dev_err(pctl->dev, "Failed to retrieve IRQ for bank %u\n", i);
goto err;
}
if (!ret) {
fwnode_handle_put(child);
dev_err(pctl->dev, "No IRQ for bank %u\n", i);
ret = -EINVAL;
goto err;
}
irq = ret;