[PATCH 3/3] drivers/perf: arm_pmu: Avoid leaking pmu->irq_affinity on error

From: Julien Grall
Date: Tue May 31 2016 - 07:41:53 EST

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@xxxxxxx>
Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
drivers/perf/arm_pmu.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index 95614d2..1b8304e 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -1040,6 +1040,7 @@ out_destroy:
pr_info("%s: failed to register PMU devices!\n",
+ kfree(pmu->irq_affinity);
return ret;