Author: Thomas Gleixner <tglx@linutronix.de>
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Search and conversion was done with coccinelle:
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
Reported-by: Russell King
Signed-off-by: Thomas Gleixner
Cc: Julia Lawall
Cc: Srinivas Kandagatla
Cc: Maxime Coquelin
Cc: Patrice Chotard
Cc: Linus Walleij
Cc: linux-arm-kernel@lists.infradead.org
Cc: kernel@stlinux.com
Cc: linux-gpio@vger.kernel.org
---
drivers/pinctrl/pinctrl-st.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 65bf73b..10e9c4e8 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1661,8 +1661,8 @@ static int st_pctl_probe_dt(struct platform_device *pdev,
if (IS_ERR(info->irqmux_base))
return PTR_ERR(info->irqmux_base);
- irq_set_chained_handler(irq, st_gpio_irqmux_handler);
- irq_set_handler_data(irq, info);
+ irq_set_chained_handler_and_data(irq, st_gpio_irqmux_handler,
+ info);
} |
---
drivers/pinctrl/pinctrl-st.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 65bf73b..10e9c4e8 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1661,8 +1661,8 @@ static int st_pctl_probe_dt(struct platform_device *pdev,
if (IS_ERR(info->irqmux_base))
return PTR_ERR(info->irqmux_base);
- irq_set_chained_handler(irq, st_gpio_irqmux_handler);
- irq_set_handler_data(irq, info);
+ irq_set_chained_handler_and_data(irq, st_gpio_irqmux_handler,
+ info);
}