1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 6bcd9e8e7bcb..cd946ed192d3 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -395,10 +395,9 @@ static int acpi_memory_device_add(struct acpi_device *device)
         if (!device)
                 return -EINVAL;
 
-        mem_device = kmalloc(sizeof(struct acpi_memory_device), GFP_KERNEL);
+        mem_device = kzalloc(sizeof(struct acpi_memory_device), GFP_KERNEL);
         if (!mem_device)
                 return -ENOMEM;
-        memset(mem_device, 0, sizeof(struct acpi_memory_device));
 
         INIT_LIST_HEAD(&mem_device->res_list);
         mem_device->device = device;
@@ -429,7 +428,7 @@ static int acpi_memory_device_remove(struct acpi_device *device, int type)
         if (!device || !acpi_driver_data(device))
                 return -EINVAL;
 
-        mem_device = (struct acpi_memory_device *)acpi_driver_data(device);
+        mem_device = acpi_driver_data(device);
         kfree(mem_device);
 
         return 0;