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drivers/perf: arm_pmu: Avoid leaking pmu->irq_affinity on error

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pmu->irq_affinity will not be freed if an error occurred within
arm_pmu_device_probe after of_pmu_irq_cfg has been called.

Note that in the case of_pmu_irq_cfg is returning an error,
pmu->irq_affinity will not be set, but it should be NULL as pmu was
kzalloc'd. Therefore the result kfree(NULL) is benign.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Julien Grall 2016-05-31 12:41:23 +01:00 committed by Will Deacon
parent 0f254c7671
commit 5988a363ed
1 changed files with 1 additions and 0 deletions
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drivers/perf/arm_pmu.c
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@ -1040,6 +1040,7 @@ int arm_pmu_device_probe(struct platform_device *pdev,
out_free:
pr_info("%s: failed to register PMU devices!\n",
of_node_full_name(node));
kfree(pmu->irq_affinity);
kfree(pmu);
return ret;
}