tree 5bc6b0f0024274f1412b4ae4bd0d5da09decd69f
parent e1c7c62afc7b998a0965cd9c3617f0513e2c3c27
author Andre Przywara <andre.przywara@arm.com> 1548439680 +0000
committer Will Deacon <will.deacon@arm.com> 1548855750 +0000

arm: pmu: Improve PMU error reporting

The KVM ioctls mostly just return -1 in the error case, leaving the
actual error code in errno.

Change the output of the PMU error message to actually print this error
code instead of the generic -1.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>