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pinctrl: bcm2835: Avoid warning from __irq_do_set_handler

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We get a warning during boot with enabled EARLY_PRINTK that
we try to set a irq_chip without data. This is caused by ignoring
the return value of irq_of_parse_and_map(). So avoid calling
gpiochip_set_chained_irqchip() in error case.

Signed-off-by: Stefan Wahren <[email protected]>
Fixes: 85ae9e512f ("pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP")
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Stefan Wahren 2017-06-21 20:20:04 +02:00 • committed by Linus Walleij
commit 37a2f8e552
1 changed files with 4 additions and 0 deletions
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4
drivers/pinctrl/bcm/pinctrl-bcm2835.c
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@ -1048,6 +1048,10 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
for (i = 0; i < BCM2835_NUM_IRQS; i++) {
pc->irq[i] = irq_of_parse_and_map(np, i);
pc->irq_group[i] = i;
if (pc->irq[i] == 0)
continue;
/*
* Use the same handler for all groups: this is necessary
* since we use one gpiochip to cover all lines - the