diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-08-10 07:51:27 +0900 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-08-22 15:10:10 +0200 |
| commit | f89c6eafa35ae06390eea50f81c94d9a3c5ee5fe (patch) | |
| tree | 729473afc057070937eb1d86876bbdf354b7cf1e | |
| parent | a863e87c3299bfebdf1f73e5fc948af911557cb2 (diff) | |
| download | linux-f89c6eafa35ae06390eea50f81c94d9a3c5ee5fe.tar.gz linux-f89c6eafa35ae06390eea50f81c94d9a3c5ee5fe.tar.xz | |
gpio: brcmstb: check return value of gpiochip_irqchip_add()
Because gpiochip_irqchip_add() may fail, its return value should
be checked.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpio-brcmstb.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c index 73f2c3be4657..dd0308cc8bb0 100644 --- a/drivers/gpio/gpio-brcmstb.c +++ b/drivers/gpio/gpio-brcmstb.c @@ -339,6 +339,7 @@ static int brcmstb_gpio_irq_setup(struct platform_device *pdev, struct brcmstb_gpio_priv *priv = bank->parent_priv; struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; + int err; bank->irq_chip.name = dev_name(dev); bank->irq_chip.irq_mask = brcmstb_gpio_irq_mask; @@ -355,8 +356,6 @@ static int brcmstb_gpio_irq_setup(struct platform_device *pdev, dev_warn(dev, "Couldn't get wake IRQ - GPIOs will not be able to wake from sleep"); } else { - int err; - /* * Set wakeup capability before requesting wakeup * interrupt, so we can process boot-time "wakeups" @@ -383,8 +382,10 @@ static int brcmstb_gpio_irq_setup(struct platform_device *pdev, if (priv->can_wake) bank->irq_chip.irq_set_wake = brcmstb_gpio_irq_set_wake; - gpiochip_irqchip_add(&bank->gc, &bank->irq_chip, 0, - handle_simple_irq, IRQ_TYPE_NONE); + err = gpiochip_irqchip_add(&bank->gc, &bank->irq_chip, 0, + handle_simple_irq, IRQ_TYPE_NONE); + if (err) + return err; gpiochip_set_chained_irqchip(&bank->gc, &bank->irq_chip, priv->parent_irq, brcmstb_gpio_irq_handler); |