From: Julia Lawall

As noted by Akinobu Mita in patch b1fceac2b9e04d278316b2faddf276015fc06e3b,
alloc_bootmem and related functions never return NULL and always return a
zeroed region of memory. Thus a NULL test or memset after calls to these
functions is unnecessary.

arch/frv/mm/init.c | 2 --
1 file changed, 2 deletions(-)

This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

//
@@
expression E;
statement S;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_ pages\|alloc_bootmem_low_pages\)(...)
.... when != E
(
- BUG_ON (E == NULL);
|
- if (E == NULL) S
)

@@
expression E,E1;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_ pages\|alloc_bootmem_low_pages\)(...)
.... when != E
- memset(E,0,E1);
//


Signed-off-by: Julia Lawall
Signed-off-by: David Howells
---

arch/frv/mm/init.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)


diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c
index 1b851db..0708284 100644
--- a/arch/frv/mm/init.c
+++ b/arch/frv/mm/init.c
@@ -87,8 +87,6 @@ void __init paging_init(void)

pkmap_page_table = alloc_bootmem_pages(PAGE_SIZE);

- memset(pkmap_page_table, 0, PAGE_SIZE);
-
pge = swapper_pg_dir + pgd_index_k(PKMAP_BASE);
pue = pud_offset(pge, PKMAP_BASE);
pme = pmd_offset(pue, PKMAP_BASE);

--
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