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| author | Yinghai Lu <yinghai@kernel.org> | 2010-10-30 12:19:29 +0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-10-30 12:28:31 +0400 |
| commit | 7b79462a20826a7269322113c68ca78d5f67c0bd (patch) | |
| tree | ae873a15bd5fbf47c2d75e26ebe84767ab1c94be /kernel | |
| parent | 2d10d8737ccdba752d60106abbc6ed4f37404923 (diff) | |
| download | linux-7b79462a20826a7269322113c68ca78d5f67c0bd.tar.xz | |
x86: Check irq_remapped instead of remapping_enabled in destroy_irq()
Russ Anderson reported:
| There is a regression that is causing a NULL pointer dereference
| in free_irte when shutting down xpc. git bisect narrowed it down
| to git commit d585d06(intr_remap: Simplify the code further), which
| changed free_irte(). Reverse applying the patch fixes the problem.
We need to use irq_remapped() for each irq instead of checking only
intr_remapping_enabled as there might be non remapped irqs even when
remapping is enabled.
[ tglx: use cfg instead of retrieving it again. Massaged changelog ]
Reported-bisected-and-tested-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <4CCBD511.40607@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions