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authorWill Deacon <will.deacon@arm.com>2012-04-05 19:42:10 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-04-10 09:27:42 +0100
commit34af657916332e89564566bc8d35e3e06cc0c236 (patch)
treebcde46e4d6cc24c84372342c507d9964e90dea8b /include
parentdff2aa7af8c96a11f75d858859f0e0c78b193d12 (diff)
downloadlinux-linaro-stable-34af657916332e89564566bc8d35e3e06cc0c236.tar.gz
ARM: 7377/1: vic: re-read status register before dispatching each IRQ handler
handle_IRQ may briefly cause interrupts to be re-enabled during soft IRQ processing on the exit path, leading to nested handling of VIC interrupts. Since the current code does not re-read the VIC_IRQ_STATUS register, this can lead to multiple invocations of the same interrupt handler and spurious interrupts to be reported. This patch changes the VIC interrupt dispatching code to re-read the status register each time, avoiding duplicate invocations of the same handler. Acked-and-Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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