From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Sat, 29 Jul 2017 21:07:07 +0300
Subject: pinctrl-st: fix of_irq_to_resource() result check
Git-commit: 98c01b19b85d8d87927e8cfa09c4a2a14add9ba2
Patch-mainline: v4.14-rc1
References: fate#326470
of_irq_to_resource() has recently been fixed to return negative error #'s
along with 0 in case of failure, however the ST driver still only regards
0 as failure indication -- fix it up.
Fixes: 7a4228bbff76 ("of: irq: use of_irq_get() in of_irq_to_resource()")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/pinctrl/pinctrl-st.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 7ac8b1e033fe..70dd2e3b2533 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1521,7 +1521,7 @@ static int st_gpiolib_register_bank(struct st_pinctrl *info,
* [irqN]----> [gpio-bank (n)]
*/
- if (of_irq_to_resource(np, 0, &irq_res)) {
+ if (of_irq_to_resource(np, 0, &irq_res) > 0) {
gpio_irq = irq_res.start;
gpiochip_set_chained_irqchip(&bank->gpio_chip, &st_gpio_irqchip,
gpio_irq, st_gpio_irq_handler);
--
2.11.0