[PATCH] ACPICA: Use acpi_os_allocate_zeroed

From: Amitoj Kaur Chawla
Date: Mon Jun 20 2016 - 01:55:22 EST


acpi_os_allocate_zeroed combines acpi_os_allocate and memset 0.

The Coccinelle semantic patch used to make this change is as follows:
@@
type T;
T *d;
expression e;
statement S;
@@

d =
- acpi_os_allocate
+ acpi_os_allocate_zeroed
(...);
if (!d) S
- memset(d, 0, sizeof(T));

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@xxxxxxxxx>
---
drivers/acpi/acpica/utcache.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c
index f8e9978..862f963 100644
--- a/drivers/acpi/acpica/utcache.c
+++ b/drivers/acpi/acpica/utcache.c
@@ -77,14 +77,13 @@ acpi_os_create_cache(char *cache_name,

/* Create the cache object */

- cache = acpi_os_allocate(sizeof(struct acpi_memory_list));
+ cache = acpi_os_allocate_zeroed(sizeof(struct acpi_memory_list));
if (!cache) {
return (AE_NO_MEMORY);
}

/* Populate the cache object and return it */

- memset(cache, 0, sizeof(struct acpi_memory_list));
cache->list_name = cache_name;
cache->object_size = object_size;
cache->max_depth = max_depth;
--
1.9.1