diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2015-06-21 21:16:21 +0300 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-25 12:57:50 +0300 |
commit | 51b971b1b93ab5d1d2e9205c9752c8ffbbcfe303 (patch) | |
tree | da82f311d261ec81cf4922e3eeea28ffecc89971 /usr | |
parent | beab99fe835be1d9ef1112dabdae3aa417126430 (diff) | |
download | linux-51b971b1b93ab5d1d2e9205c9752c8ffbbcfe303.tar.xz |
sh/intc: 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: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-sh@vger.kernel.org
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions