drivers/perf: arm_pmu_acpi: Release memory obtained by kasprintf

Free memory region, if arm_pmu_acpi_probe is not successful.

Acked-by: Will Deacon <[e-mail]>
Signed-off-by: Arvind Yadav <[e-mail]>
Signed-off-by: Catalin Marinas <[e-mail]>

drivers/perf/arm_pmu_acpi.c

···
 		ret = armpmu_register(pmu);
 		if (ret) {
 			pr_warn("Failed to register PMU for CPU%d\n", cpu);
+			kfree(pmu->name);
 			return ret;
 		}
 	}