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pinctrl-st: fix of_irq_to_resource() result check

PATCH New Sergei Shtylyov 3 participants 6 messages Jul 29, 2017 – Aug 7, 2017

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#0 lore raw

PATCH 1/1 pinctrl-st: fix of_irq_to_resource() result check

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()")
---
 drivers/pinctrl/pinctrl-st.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/pinctrl/pinctrl-st.c +1 -1
Index: linux-pinctrl/drivers/pinctrl/pinctrl-st.c
===================================================================
@@ -1521,7 +1521,7 @@ static int st_gpiolib_register_bank(stru
 	 *	[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);
#1 lore raw

PATCH 1/1 pinctrl-st: fix of_irq_to_resource() result check

Quoted 6 lines · Sergei Shtylyov

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()")

[...]

Forgot to mention that the patch is against the 'fixes' branch of Linus
W.'s 'linux-pinctrl.git' repo.

MBR, Sergei

#2 lore raw

PATCH 1/1 pinctrl-st: fix of_irq_to_resource() result check

In reply to Sergei Shtylyov
Quoted 16 lines · Sergei Shtylyov

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()")
---
 drivers/pinctrl/pinctrl-st.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-pinctrl/drivers/pinctrl/pinctrl-st.c
===================================================================

drivers/pinctrl/pinctrl-st.c static int st_gpiolib_register_bank(stru · line 1527

Quoted 8 lines
drivers/pinctrl/pinctrl-st.c +1 -1
@@ -1521,7 +1521,7 @@ static int st_gpiolib_register_bank(stru
 	 *	[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);

While at it, maybe turn this into of_irq_get() since you only need the interrupt number in the first place?

Thierry
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#3 lore raw

PATCH 1/1 pinctrl-st: fix of_irq_to_resource() result check

Hello!

Quoted 19 lines · Thierry Reding
Quoted 19 lines

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()")
---
 drivers/pinctrl/pinctrl-st.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-pinctrl/drivers/pinctrl/pinctrl-st.c
===================================================================

drivers/pinctrl/pinctrl-st.c +0 -0
@@ -1521,7 +1521,7 @@ static int st_gpiolib_register_bank(stru
 	 *	[irqN]----> [gpio-bank (n)]
 	 */
 
Quoted 8 lines

drivers/pinctrl/pinctrl-st.c static int st_gpiolib_register_bank(stru · line 1527

Quoted 5 lines
drivers/pinctrl/pinctrl-st.c +1 -1
-	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);

While at it, maybe turn this into of_irq_get() since you only need the interrupt number in the first place?

Yeah, noticed that too. Will look into this (if I won't forget).

Quoted 1 line

Thierry

MBR, Sergei

#4 lore raw

PATCH 1/1 pinctrl-st: fix of_irq_to_resource() result check

In reply to Sergei Shtylyov
Quoted 6 lines · Sergei Shtylyov

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()")

Patch applied.

Yours,
Linus Walleij

#5 lore raw

PATCH 1/1 pinctrl-st: fix of_irq_to_resource() result check

Quoted 8 lines · Linus Walleij
Quoted 6 lines

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()")

Patch applied.

Again, not seeing it...

Quoted 2 lines

Yours,
Linus Walleij

MBR, Sergei