[PATCH master 1/2] file_list: factor out file_list_new

[Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>]

We have the sequence for creating a new file_list at two places and
follow-up commit will add a third one outside of the file, so it's a
good occasion to use a common helper. No functional change.

Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
 common/file-list.c  | 19 +++++++++++++------
 include/file-list.h |  1 +
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/common/file-list.c b/common/file-list.c
index 407b31283373..11db7c6e44c7 100644
--- a/common/file-list.c
+++ b/common/file-list.c
@@ -130,16 +130,25 @@ static const char *flags_to_str(int flags)
 	return str;
 }
 
-struct file_list *file_list_parse(const char *str)
+struct file_list *file_list_new(void)
 {
 	struct file_list *files;
-	int ret;
-	const char *endptr;
 
 	files = xzalloc(sizeof(*files));
 
 	INIT_LIST_HEAD(&files->list);
 
+	return files;
+}
+
+struct file_list *file_list_parse(const char *str)
+{
+	struct file_list *files;
+	int ret;
+	const char *endptr;
+
+	files = file_list_new();
+
 	while (*str) {
 		ret = file_list_parse_one(files, str, &endptr);
 		if (ret) {
@@ -195,9 +204,7 @@ struct file_list *file_list_dup(struct file_list *old)
 	struct file_list_entry *old_entry;
 	struct file_list *new;
 
-	new = xzalloc(sizeof(*new));
-
-	INIT_LIST_HEAD(&new->list);
+	new = file_list_new();
 
 	list_for_each_entry(old_entry, &old->list, list) {
 		(void)file_list_add_entry(new, old_entry->name, old_entry->filename,
diff --git a/include/file-list.h b/include/file-list.h
index 5090313739b8..af0dd7bbf108 100644
--- a/include/file-list.h
+++ b/include/file-list.h
@@ -29,6 +29,7 @@ void file_list_free(struct file_list *);
 int file_list_add_entry(struct file_list *files, const char *name, const char *filename,
 			unsigned long flags);
 
+struct file_list *file_list_new(void);
 struct file_list *file_list_dup(struct file_list *old);
 
 int file_list_detect_all(const struct file_list *files);
-- 
2.30.2