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author | Thomas Gleixner <tglx@linutronix.de> | 2015-06-21 20:16:05 +0200 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-25 11:56:48 +0200 |
commit | 6218b88d2678523cc2f6f8e3ea1182c250d9684f (patch) | |
tree | 522e86cc003144dda8ac955d6b15cfe4efbb909c /drivers/gpio/gpio-adp5588.c | |
parent | gpio/bcm-kona: Fix race in installing chained IRQ handler (diff) | |
download | linux-6218b88d2678523cc2f6f8e3ea1182c250d9684f.tar.xz linux-6218b88d2678523cc2f6f8e3ea1182c250d9684f.zip |
gpio/dwapb: 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: Alexandre Courbot <gnurou@gmail.com>
Cc: linux-gpio@vger.kernel.org
Diffstat (limited to 'drivers/gpio/gpio-adp5588.c')
0 files changed, 0 insertions, 0 deletions