linux/drivers/pinctrl/sunxi
Thomas Gleixner ef80e87d20 pinctrl/sun4i: Fix race in installing chained IRQ handler
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 <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Fan Wu <fwu@marvell.com>
Cc: abdoulaye berthe <berthe.ab@gmail.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
2015-06-25 11:57:17 +02:00
..
Kconfig pinctrl: sun6i: Add A31s pinctrl support 2015-01-14 14:21:52 +01:00
Makefile pinctrl: sun6i: Add A31s pinctrl support 2015-01-14 14:21:52 +01:00
pinctrl-sun4i-a10.c This is the bulk of pin control changes for the v4.1 development 2015-04-14 17:58:15 -07:00
pinctrl-sun5i-a10s.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sun5i-a13.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sun6i-a31-r.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sun6i-a31.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sun6i-a31s.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sun7i-a20.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sun8i-a23-r.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sun8i-a23.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sun9i-a80.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-sunxi.c pinctrl/sun4i: Fix race in installing chained IRQ handler 2015-06-25 11:57:17 +02:00
pinctrl-sunxi.h pinctrl: sun4i: GPIOs configured as irq must be set to input before reading 2015-03-18 10:56:46 +01:00