perf tools: Introduce zalloc() for the common calloc(1, N) case
This way we type less characters and it looks more like the
kzalloc kernel counterpart.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1259071517-3242-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index c4ca974..8db85b4 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -94,15 +94,14 @@
static struct symbol *symbol__new(u64 start, u64 len, const char *name)
{
size_t namelen = strlen(name) + 1;
- struct symbol *self = calloc(1, (symbol__priv_size +
- sizeof(*self) + namelen));
- if (!self)
+ struct symbol *self = zalloc(symbol__priv_size +
+ sizeof(*self) + namelen);
+ if (self == NULL)
return NULL;
- if (symbol__priv_size) {
- memset(self, 0, symbol__priv_size);
+ if (symbol__priv_size)
self = ((void *)self) + symbol__priv_size;
- }
+
self->start = start;
self->end = len ? start + len - 1 : start;