diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index ee5759bef9454df682d7520032e8c33f5bfbc0b8..80ffc782991631492d08c2dea2837972698e5193 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -332,16 +332,18 @@ static void acpi_processor_idle(void)
 	int sleep_ticks = 0;
 	u32 t1, t2 = 0;
 
-	pr = processors[smp_processor_id()];
-	if (!pr)
-		return;
-
 	/*
 	 * Interrupts must be disabled during bus mastering calculations and
 	 * for C2/C3 transitions.
 	 */
 	local_irq_disable();
 
+	pr = processors[smp_processor_id()];
+	if (!pr) {
+		local_irq_enable();
+		return;
+	}
+
 	/*
 	 * Check whether we truly need to go idle, or should
 	 * reschedule:
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 194ecfe8b3600d6195a491eae99483546f1a3abe..88a6fc7fd271e54dd63d1fabd537878276bf3a21 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -828,6 +828,8 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
 {
 	struct acpi_thermal *tz = seq->private;
 	struct acpi_device *device;
+	acpi_status status;
+
 	int i = 0;
 	int j = 0;
 
@@ -850,8 +852,10 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
 			   tz->trips.passive.tc1, tz->trips.passive.tc2,
 			   tz->trips.passive.tsp);
 		for (j = 0; j < tz->trips.passive.devices.count; j++) {
-			acpi_bus_get_device(tz->trips.passive.devices.handles[j], &device);
-			seq_printf(seq, "%4.4s ", acpi_device_bid(device));
+			status = acpi_bus_get_device(tz->trips.passive.devices.
+						     handles[j], &device);
+			seq_printf(seq, "%4.4s ", status ? "" :
+				   acpi_device_bid(device));
 		}
 		seq_puts(seq, "\n");
 	}
@@ -863,8 +867,11 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
 			   i,
 			   KELVIN_TO_CELSIUS(tz->trips.active[i].temperature));
 		for (j = 0; j < tz->trips.active[i].devices.count; j++){
-			acpi_bus_get_device(tz->trips.active[i].devices.handles[j], &device);
-			seq_printf(seq, "%4.4s ", acpi_device_bid(device));
+			status = acpi_bus_get_device(tz->trips.active[i].
+						     devices.handles[j],
+						     &device);
+			seq_printf(seq, "%4.4s ", status ? "" :
+				   acpi_device_bid(device));
 		}
 		seq_puts(seq, "\n");
 	}
diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index db0b9bac7945f7bd55b55a0561b37104630ca23b..76ee766c84f948ed2d8749f06486338a792f7e05 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -177,7 +177,7 @@ union acpi_operand_object *acpi_ut_create_package_object(u32 count)
 	package_elements = ACPI_ALLOCATE_ZEROED((acpi_size)
 						(count + 1) * sizeof(void *));
 	if (!package_elements) {
-		ACPI_FREE(package_desc);
+		acpi_ut_remove_reference(package_desc);
 		return_PTR(NULL);
 	}