tree bb0d3c26f09d67eb46c1dbbb59ac969fcebd97d1
parent 67948af41f2e6818edeeba5182811c704d484949
author Suzuki K Poulose <Suzuki.Poulose@arm.com> 1516013476 +0000
committer Catalin Marinas <catalin.marinas@arm.com> 1516039337 +0000

perf: dsu: Use signed field for dsu_pmu->num_counters

We set dsu_pmu->num_counters to -1, when the DSU is allocated
but not initialised when none of the CPUs are active in the DSU.
However, we use an unsigned field for num_counters. Switch this
to a signed field.

Fixes: 7520fa99246d ("perf: ARM DynamIQ Shared Unit PMU support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>