Re: [PATCH] pinctrl: iproc: improve error handling

From: Scott Branden
Date: Wed Oct 02 2019 - 19:29:39 EST


Hi Chris,

On 2019-10-02 3:00 p.m., Chris Packham wrote:
platform_get_irq() can return an error code. Allow for this when getting
the irq.
Above matches change in 1st line of commit. Please add a Fixes: tag
for such fix.
While we're here use the dev_name(dev) for the irqc->name so
that we get unique names when we have multiple instances of this driver.
The dev_name change should be in a different commit to keep things
bisectable.

Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
---
Noticed this while debugging another problem.

drivers/pinctrl/bcm/pinctrl-iproc-gpio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
index 6f7d3a2f2e97..c24d49d436ce 100644
--- a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
@@ -853,12 +853,12 @@ static int iproc_gpio_probe(struct platform_device *pdev)
/* optional GPIO interrupt support */
irq = platform_get_irq(pdev, 0);
- if (irq) {
+ if (irq > 0) {
struct irq_chip *irqc;
struct gpio_irq_chip *girq;
irqc = &chip->irqchip;
- irqc->name = "bcm-iproc-gpio";
+ irqc->name = dev_name(dev);
irqc->irq_ack = iproc_gpio_irq_ack;
irqc->irq_mask = iproc_gpio_irq_mask;
irqc->irq_unmask = iproc_gpio_irq_unmask;
Thanks,
Scott