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staging: gasket: use vzalloc instead of vmalloc/memset

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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>
This commit is contained in:
Ivan Bornyakov 2018-07-23 21:30:25 +03:00 committed by Greg Kroah-Hartman
parent afa9e31818
commit 24b9bdff8d
1 changed files with 2 additions and 4 deletions
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6
drivers/staging/gasket/gasket_page_table.c
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@ -330,7 +330,7 @@ int gasket_page_table_init(
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 @@ int gasket_page_table_init(
*ppg_tbl = NULL;
return -ENOMEM;
}
memset(pg_tbl->entries, 0, bytes);
}
mutex_init(&pg_tbl->mutex);
@ -1054,13 +1053,12 @@ static int gasket_alloc_extended_subtable(
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) {