From: Timo Kokkonen <kaapeli@itanic.dy.fi>
Date: Tue, 27 Sep 2011 15:30:08 +0000 (+0300)
Subject: Replace malloc + memset with calloc
X-Git-Url: http://git.itanic.dy.fi/?p=scan-pagemap;a=commitdiff_plain;h=6274976541f127db372daa1f394b82bfc0249771

Replace malloc + memset with calloc

The libc has a function for allocating cleared memory, so use that
instead of manually clearing the memory with memset.

Signed-off-by: Timo Kokkonen <kaapeli@itanic.dy.fi>
---

diff --git a/pagemap.h b/pagemap.h
index 3482b4d..34bcd75 100644
--- a/pagemap.h
+++ b/pagemap.h
@@ -200,12 +200,11 @@ static inline void init_parse_opts(struct parse_opts *p)
 
 static inline struct pidlist *alloc_pidlist(void)
 {
-	struct pidlist *p = malloc(sizeof(*p));
+	struct pidlist *p = calloc(sizeof(*p), 1);
 
 	if (p == NULL)
 		return p;
 
-	memset(p, 0, sizeof(*p));
 	INIT_LIST_HEAD(&p->list);
 
 	return p;
diff --git a/parse.c b/parse.c
index 9241526..5f3196c 100644
--- a/parse.c
+++ b/parse.c
@@ -32,11 +32,10 @@ static struct maps_list *alloc_maplist(void)
 {
 	struct maps_list *map;
 
-	map = malloc(sizeof *map);
+	map = calloc(sizeof *map, 1);
 	if (map == NULL)
 		goto err;
 
-	memset(map, 0, sizeof(*map));
 	INIT_LIST_HEAD(&map->list);
 err:
 	return map;
@@ -46,7 +45,7 @@ static struct maps *alloc_map(void)
 {
 	struct maps *map;
 
-	map = malloc(sizeof *map);
+	map = calloc(sizeof(*map), 1);
 	if (map == NULL)
 		goto err;
 
@@ -283,8 +282,7 @@ static int read_pageframe(int pid, int tid, struct pageframe *pageframe,
 	FILE *file;
 	char path[512];
 
-	process = malloc(sizeof(*process));
-	memset(process, 0, sizeof(*process));
+	process = calloc(sizeof(*process), 1);
 	INIT_LIST_HEAD(&process->list);
 
 	process->pid = pid;