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author | Thomas Gleixner <tglx@linutronix.de> | 2012-11-23 13:08:44 +0400 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2012-12-11 15:25:30 +0400 |
commit | e716efde75267eab919cdb2bef5b2cb77f305326 (patch) | |
tree | 7af4b7266b29a7a0268fcf68cb5f3a8c23405dd3 /arch/mips/pci/pci-yosemite.c | |
parent | 04aa530ec04f61875b99c12721162e2964e3318c (diff) | |
download | linux-e716efde75267eab919cdb2bef5b2cb77f305326.tar.xz |
genirq: Avoid deadlock in spurious handling
commit 52553ddf(genirq: fix regression in irqfixup, irqpoll)
introduced a potential deadlock by calling the action handler with the
irq descriptor lock held.
Remove the call and let the handling code run even for an interrupt
where only a single action is registered. That matches the goal of
the above commit and avoids the deadlock.
Document the confusing action = desc->action reload in the handling
loop while at it.
Reported-and-tested-by: "Wang, Warner" <warner.wang@hp.com>
Tested-by: Edward Donovan <edward.donovan@numble.net>
Cc: "Wang, Song-Bo (Stoney)" <song-bo.wang@hp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/mips/pci/pci-yosemite.c')
0 files changed, 0 insertions, 0 deletions