]> git.baikalelectronics.ru Git - kernel.git/commit
perf: dsu: Use signed field for dsu_pmu->num_counters
authorSuzuki K Poulose <Suzuki.Poulose@arm.com>
Mon, 15 Jan 2018 10:51:16 +0000 (10:51 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Mon, 15 Jan 2018 18:02:17 +0000 (18:02 +0000)
commitd15f01acd5834ea5ac41518798baa6d7e644523c
treebb0d3c26f09d67eb46c1dbbb59ac969fcebd97d1
parent819c1825b02121eecbf461fed086f8e2036a7af0
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: ab287d045d62 ("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>
drivers/perf/arm_dsu_pmu.c