staging: gasket: use vzalloc instead of vmalloc/memset
Use vzalloc instead of vmalloc followed by memset with 0.
Signed-off-by: Ivan Bornyakov <brnkv.i1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c
index 4f2ff77..55ab593 100644
--- a/drivers/staging/gasket/gasket_page_table.c
+++ b/drivers/staging/gasket/gasket_page_table.c
@@ -330,7 +330,7 @@
pg_tbl = *ppg_tbl;
bytes = total_entries * sizeof(struct gasket_page_table_entry);
if (bytes != 0) {
- pg_tbl->entries = vmalloc(bytes);
+ pg_tbl->entries = vzalloc(bytes);
if (!pg_tbl->entries) {
gasket_nodev_debug(
"No memory for address translation metadata.");
@@ -338,7 +338,6 @@
*ppg_tbl = NULL;
return -ENOMEM;
}
- memset(pg_tbl->entries, 0, bytes);
}
mutex_init(&pg_tbl->mutex);
@@ -1054,13 +1053,12 @@
subtable_bytes = sizeof(struct gasket_page_table_entry) *
GASKET_PAGES_PER_SUBTABLE;
- pte->sublevel = vmalloc(subtable_bytes);
+ pte->sublevel = vzalloc(subtable_bytes);
if (!pte->sublevel) {
free_page(page_addr);
memset(pte, 0, sizeof(struct gasket_page_table_entry));
return -ENOMEM;
}
- memset(pte->sublevel, 0, subtable_bytes);
/* Map the page into DMA space. */
if (pg_tbl->dma_ops) {
