diff options
author | Julia Lawall <julia@diku.dk> | 2008-10-15 16:51:04 +0100 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 15:06:54 -0700 |
commit | 70a3075d40154053ad90d342b3dcb1b795c73dbb (patch) | |
tree | 8740f15b26908f8ab247b3fc4c96cfaaf88140c9 /kernel/trace/ftrace.c | |
parent | cb76d5a4c4a74f4ff0bd4db5069f02fe4679a5ed (diff) |
FRV: Eliminate NULL test and memset after alloc_bootmem
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/)
// <smpl>
@@
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);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/trace/ftrace.c')
0 files changed, 0 insertions, 0 deletions