drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer (3ba52ad5) · Commits · 戴 / test

Fix bogus NULL checks on the return value of acpi_cpu_get_madt_gicc() by checking for a 0 'gicc->performance_interrupt' value instead. Signed-off-by:

drivers/perf/arm_pmu_acpi.c

+2 −5

Original line number	Diff line number	Diff line
		@@ -24,8 +24,6 @@ static int arm_pmu_acpi_register_irq(int cpu)
		int gsi, trigger;

		gicc = acpi_cpu_get_madt_gicc(cpu);
		if (WARN_ON(!gicc))
		return -EINVAL;

		gsi = gicc->performance_interrupt;

		@@ -64,10 +62,9 @@ static void arm_pmu_acpi_unregister_irq(int cpu)
		int gsi;

		gicc = acpi_cpu_get_madt_gicc(cpu);
		if (!gicc)
		return;

		gsi = gicc->performance_interrupt;
		if (gsi)
		acpi_unregister_gsi(gsi);
		}