sh/intc: Fix potential race in installing chained IRQ handler
authorThomas Gleixner <tglx@linutronix.de>
Mon, 22 Jun 2015 09:31:34 +0000 (11:31 +0200)
committerThomas Gleixner <tglx@linutronix.de>
Thu, 25 Jun 2015 09:57:19 +0000 (11:57 +0200)
commitbeab99fe835be1d9ef1112dabdae3aa417126430
tree2353ffbdadfac7e4d9c2a96a6f81fffcdd5587ed
parentef80e87d20d115eaee15da666f1a3551328205bb
sh/intc: Fix potential 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 moving the call to
irq_set_chained_handler() after the function which sets up the handler
data.

Found by code inspection.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-sh@vger.kernel.org
drivers/sh/intc/virq.c