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ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable 

We currently return -EPERM if the user requests mode exclusion that is
not supported by the CPU. This looks pretty confusing from userspace
and is inconsistent with other architectures (ppc, x86).

This patch returns -EOPNOTSUPP instead.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Will Deacon 2012-07-04 18:15:42 +01:00 committed by Russell King
parent 433e2f307b
commit fdeb8e35fd
1 changed files with 1 additions and 1 deletions
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2
arch/arm/kernel/perf_event.c
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@ -503,7 +503,7 @@ __hw_perf_event_init(struct perf_event *event)
event_requires_mode_exclusion(&event->attr)) {
pr_debug("ARM performance counters do not support "
"mode exclusion\n");
return -EPERM;
return -EOPNOTSUPP;
}
/*