ACPICA: Cleanup useless memset invocations.

This patch removes unnecessary memset() invocations where
kmem_cache_zalloc() is used for allocating memory.  It also helps to
reduce source code differences between ACPICA upstream and Linux.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2 files changed, 0 insertions, 2 deletions

diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index d2a7b6123743..13e045025c33 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -396,7 +396,6 @@ void *acpi_ut_allocate_object_desc_dbg(const char *module_name,
 
         /* Mark the descriptor type */
 
-        memset(object, 0, sizeof(union acpi_operand_object));
         ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND);
 
         ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c
index a6b729d4c1dc..03c4c2febd84 100644
--- a/drivers/acpi/acpica/utstate.c
+++ b/drivers/acpi/acpica/utstate.c
@@ -161,7 +161,6 @@ union acpi_generic_state *acpi_ut_create_generic_state(void)
         if (state) {
 
                 /* Initialize */
-                memset(state, 0, sizeof(union acpi_generic_state));
                 state->common.descriptor_type = ACPI_DESC_TYPE_STATE;
         }