1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 4139e65d0ff5..5049230ccf49 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1027,12 +1027,11 @@ acpi_add_single_object(struct acpi_device **child,
         if (!child)
                 return -EINVAL;
 
-        device = kmalloc(sizeof(struct acpi_device), GFP_KERNEL);
+        device = kzalloc(sizeof(struct acpi_device), GFP_KERNEL);
         if (!device) {
                 printk(KERN_ERR PREFIX "Memory allocation error\n");
                 return -ENOMEM;
         }
-        memset(device, 0, sizeof(struct acpi_device));
 
         device->handle = handle;
         device->parent = parent;
@@ -1368,14 +1367,14 @@ static int acpi_bus_scan_fixed(struct acpi_device *root)
         /*
          * Enumerate all fixed-feature devices.
          */
-        if (acpi_fadt.pwr_button == 0) {
+        if ((acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON) == 0) {
                 result = acpi_add_single_object(&device, acpi_root,
                                                 NULL,
                                                 ACPI_BUS_TYPE_POWER_BUTTON,
                                                 &ops);
         }
 
-        if (acpi_fadt.sleep_button == 0) {
+        if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
                 result = acpi_add_single_object(&device, acpi_root,
                                                 NULL,
                                                 ACPI_BUS_TYPE_SLEEP_BUTTON,