linux_dsm_epyc7002/drivers/pinctrl/mediatek
Thomas Gleixner 1e10592136 pinctrl/mediatek: 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: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Hongzhou Yang <hongzhou.yang@mediatek.com>
Cc: Axel Lin <axel.lin@ingics.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Maoguang Meng <maoguang.meng@mediatek.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
2015-06-25 11:57:04 +02:00
..
Kconfig pinctrl: fix allmodconfig noise 2015-04-15 10:02:42 +02:00
Makefile arm64: mediatek: Add Pinctrl/GPIO/EINT driver for mt8173. 2015-03-18 02:02:16 +01:00
pinctrl-mt8135.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-mt8173.c pinctrl: constify of_device_id array 2015-03-27 09:58:35 +01:00
pinctrl-mtk-common.c pinctrl/mediatek: Fix race in installing chained IRQ handler 2015-06-25 11:57:04 +02:00
pinctrl-mtk-common.h pinctrl: mediatek: emulate GPIO interrupt on both-edges 2015-03-18 02:02:16 +01:00
pinctrl-mtk-mt8135.h pinctrl: mediatek: Fix include directive 2015-03-18 10:58:21 +01:00
pinctrl-mtk-mt8173.h pinctrl: mediatek: mt8135/mt8173: Fix build error due to missing include file 2015-03-18 13:06:09 +01:00