[PATCH v7] revision: use calloc instead of malloc where possible

["AreaZR via GitGitGadget" <gitgitgadget@gmail.com>]

From: Seija Kijin <doremylover123@gmail.com>

We can avoid having to call memset by calling calloc

Signed-off-by: Seija <doremylover123@gmail.com>
---
    revision: use calloc instead of malloc where possible
    
    We can avoid having to call memset by calling calloc
    
    Signed-off-by: Seija doremylover123@gmail.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1390%2FAreaZR%2Fcalloc-v7
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1390/AreaZR/calloc-v7
Pull-Request: https://github.com/git/git/pull/1390

Range-diff vs v6:

 1:  e012cf5c158 ! 1:  e91cea8dea8 revision: use calloc instead of malloc where possible
     @@
       ## Metadata ##
     -Author: Seija <doremylover123@gmail.com>
     +Author: Seija Kijin <doremylover123@gmail.com>
      
       ## Commit message ##
          revision: use calloc instead of malloc where possible
      
          We can avoid having to call memset by calling calloc
      
     -    Signed-off-by: Seija doremylover123@gmail.com
     +    Signed-off-by: Seija <doremylover123@gmail.com>
      
       ## builtin/pack-redundant.c ##
      @@ builtin/pack-redundant.c: static inline struct llist_item *llist_item_get(void)
     @@ builtin/pack-redundant.c: static inline struct llist_item *llist_item_get(void)
      -	(*list)->size = 0;
      -}
      -
     - static struct llist * llist_copy(struct llist *list)
     + static void llist_free(struct llist *list)
       {
     + 	for (struct llist_item *i = list->front, *next; i; i = next) {
     +@@ builtin/pack-redundant.c: static struct llist * llist_copy(struct llist *list)
       	struct llist *ret;
       	struct llist_item *new_item, *old_item, *prev;
       
     @@ builtin/pack-redundant.c: static struct pack_list * add_pack(struct packed_git *
       
       	if (open_pack_index(p))
       		return NULL;
     -@@ builtin/pack-redundant.c: int cmd_pack_redundant(int argc, const char **argv, const char *prefix)
     +@@ builtin/pack-redundant.c: int cmd_pack_redundant(int argc, const char **argv, const char *prefix UNUSED, s
       		scan_alt_odb_packs();
       
       	/* ignore objects given on stdin */
      -	llist_init(&ignore);
      +	CALLOC_ARRAY(ignore, 1);
       	if (!isatty(0)) {
     + 		struct object_id oid;
       		while (fgets(buf, sizeof(buf), stdin)) {
     - 			oid = xmalloc(sizeof(*oid));
      
       ## remote.c ##
      @@ remote.c: void apply_push_cas(struct push_cas_option *cas,
     @@ submodule.c: static struct fetch_task *fetch_task_create(struct submodule_parall
      +
      +	CALLOC_ARRAY(task, 1);
       
     - 	task->sub = submodule_from_path(spf->r, treeish_name, path);
     - 
     + 	if (validate_submodule_path(path) < 0)
     + 		exit(128);


 builtin/pack-redundant.c | 17 +++++------------
 remote.c                 |  4 ++--
 submodule.c              | 10 +++++-----
 3 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/builtin/pack-redundant.c b/builtin/pack-redundant.c
index bc61990a933..7015a85bf78 100644
--- a/builtin/pack-redundant.c
+++ b/builtin/pack-redundant.c
@@ -63,13 +63,6 @@ static inline struct llist_item *llist_item_get(void)
 	return new_item;
 }
 
-static inline void llist_init(struct llist **list)
-{
-	*list = xmalloc(sizeof(struct llist));
-	(*list)->front = (*list)->back = NULL;
-	(*list)->size = 0;
-}
-
 static void llist_free(struct llist *list)
 {
 	for (struct llist_item *i = list->front, *next; i; i = next) {
@@ -84,7 +77,7 @@ static struct llist * llist_copy(struct llist *list)
 	struct llist *ret;
 	struct llist_item *new_item, *old_item, *prev;
 
-	llist_init(&ret);
+	CALLOC_ARRAY(ret, 1);
 
 	if ((ret->size = list->size) == 0)
 		return ret;
@@ -480,7 +473,7 @@ static void load_all_objects(void)
 	struct pack_list *pl = local_packs;
 	struct llist_item *hint, *l;
 
-	llist_init(&all_objects);
+	CALLOC_ARRAY(all_objects, 1);
 
 	while (pl) {
 		hint = NULL;
@@ -507,7 +500,7 @@ static void cmp_local_packs(void)
 
 	/* only one packfile */
 	if (!pl->next) {
-		llist_init(&pl->unique_objects);
+		CALLOC_ARRAY(pl->unique_objects, 1);
 		return;
 	}
 
@@ -544,7 +537,7 @@ static struct pack_list * add_pack(struct packed_git *p)
 		return NULL;
 
 	l.pack = p;
-	llist_init(&l.remaining_objects);
+	CALLOC_ARRAY(l.remaining_objects, 1);
 
 	if (open_pack_index(p))
 		return NULL;
@@ -650,7 +643,7 @@ int cmd_pack_redundant(int argc, const char **argv, const char *prefix UNUSED, s
 		scan_alt_odb_packs();
 
 	/* ignore objects given on stdin */
-	llist_init(&ignore);
+	CALLOC_ARRAY(ignore, 1);
 	if (!isatty(0)) {
 		struct object_id oid;
 		while (fgets(buf, sizeof(buf), stdin)) {
diff --git a/remote.c b/remote.c
index 10104d11e3c..462ff105273 100644
--- a/remote.c
+++ b/remote.c
@@ -2854,9 +2854,9 @@ void apply_push_cas(struct push_cas_option *cas,
 
 struct remote_state *remote_state_new(void)
 {
-	struct remote_state *r = xmalloc(sizeof(*r));
+	struct remote_state *r;
 
-	memset(r, 0, sizeof(*r));
+	CALLOC_ARRAY(r, 1);
 
 	hashmap_init(&r->remotes_hash, remotes_hash_cmp, NULL, 0);
 	hashmap_init(&r->branches_hash, branches_hash_cmp, NULL, 0);
diff --git a/submodule.c b/submodule.c
index 7ec564854d0..7707c6f48f0 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1489,14 +1489,13 @@ struct fetch_task {
  */
 static const struct submodule *get_non_gitmodules_submodule(const char *path)
 {
-	struct submodule *ret = NULL;
+	struct submodule *ret;
 	const char *name = default_name_or_path(path);
 
 	if (!name)
 		return NULL;
 
-	ret = xmalloc(sizeof(*ret));
-	memset(ret, 0, sizeof(*ret));
+	CALLOC_ARRAY(ret, 1);
 	ret->path = name;
 	ret->name = name;
 
@@ -1536,8 +1535,9 @@ static struct fetch_task *fetch_task_create(struct submodule_parallel_fetch *spf
 					    const char *path,
 					    const struct object_id *treeish_name)
 {
-	struct fetch_task *task = xmalloc(sizeof(*task));
-	memset(task, 0, sizeof(*task));
+	struct fetch_task *task;
+
+	CALLOC_ARRAY(task, 1);
 
 	if (validate_submodule_path(path) < 0)
 		exit(128);

base-commit: 2ccc89b0c16c51561da90d21cfbb4b58cc877bf6
-- 
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