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| author | Will Deacon <will.deacon@arm.com> | 2012-04-05 22:42:10 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-04-10 12:27:42 +0400 |
| commit | 34af657916332e89564566bc8d35e3e06cc0c236 (patch) | |
| tree | bcde46e4d6cc24c84372342c507d9964e90dea8b /include | |
| parent | dff2aa7af8c96a11f75d858859f0e0c78b193d12 (diff) | |
| download | linux-34af657916332e89564566bc8d35e3e06cc0c236.tar.xz | |
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>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions