ACPI: Clean up memory allocations

Use acpi_os_allocate_zeroed instead of acpi_os_allocate + memset.

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
[rjw: Subject and changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2 files changed, 2 insertions, 4 deletions

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index f7fd72ac69cf..6776c599816f 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1219,10 +1219,9 @@ acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle)
 {
         struct semaphore *sem = NULL;
 
-        sem = acpi_os_allocate(sizeof(struct semaphore));
+        sem = acpi_os_allocate_zeroed(sizeof(struct semaphore));
         if (!sem)
                 return AE_NO_MEMORY;
-        memset(sem, 0, sizeof(struct semaphore));
 
         sema_init(sem, initial_units);
 
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 0f5f78fa6545..bba526148583 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -164,11 +164,10 @@ acpi_extract_package(union acpi_object *package,
          * Validate output buffer.
          */
         if (buffer->length == ACPI_ALLOCATE_BUFFER) {
-                buffer->pointer = ACPI_ALLOCATE(size_required);
+                buffer->pointer = ACPI_ALLOCATE_ZEROED(size_required);
                 if (!buffer->pointer)
                         return AE_NO_MEMORY;
                 buffer->length = size_required;
-                memset(buffer->pointer, 0, size_required);
         } else {
                 if (buffer->length < size_required) {
                         buffer->length = size_required;