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irq: change ->set_affinity() to return status

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according to Ingo, change set_affinity() in irq_chip should return int,
because that way we can handle failure cases in a much cleaner way, in
the genirq layer.

v2: fix two typos

[ Impact: extend API ]

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: linux-arch@vger.kernel.org
LKML-Reference: <49F654E9.4070809@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2009-04-27 17:59:21 -07:00
committed by Ingo Molnar
parent fcef5911c7
commit d5dedd4507
23 changed files with 140 additions and 74 deletions
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6
arch/parisc/kernel/irq.c
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@@ -130,15 +130,17 @@ int cpu_check_affinity(unsigned int irq, const struct cpumask *dest)
return cpu_dest;
}
static void cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
static int cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
{
int cpu_dest;
cpu_dest = cpu_check_affinity(irq, dest);
if (cpu_dest < 0)
return;
return -1;
cpumask_copy(&irq_desc[irq].affinity, dest);
return 0;
}
#endif