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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-01-31 19:03:21 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-01-31 20:22:18 +0100 |
| commit | aaaec6fc755447a1d056765b11b24d8ff2b81366 (patch) | |
| tree | a7f4167960ee1df86739905b6ccdeb95465bfe5f /kernel | |
| parent | 08d85f3ea99f1eeafc4e8507936190e86a16ee8c (diff) | |
| download | linux-aaaec6fc755447a1d056765b11b24d8ff2b81366.tar.bz2 | |
x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed
interesting code in x86. The code (ab)uses irq_domain_activate_irq() to
reconfigure an already activated interrupt. That trips over the prevention
code now.
Fix it by deactivating the interrupt before activating the new configuration.
Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once"
Reported-and-tested-by: Mike Galbraith <efault@gmx.de>
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions