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>

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index f7fd72a..6776c59 100644 (file)
--- 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 0f5f78f..bba5261 100644 (file)
--- 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;