Replace a few more str(n)dupa by str(n)dup + free

src/lxc/bdev.c

@@ -1602,7 +1602,8 @@ static int overlayfs_mount(struct bdev *bdev)
 
 	//  separately mount it first
 	//  mount -t overlayfs -oupperdir=${upper},lowerdir=${lower} lower dest
-	dup = strdupa(bdev->src);
+	dup = alloca(strlen(bdev->src)+1);
+	strcpy(dup, bdev->src);
 	if (!(lower = index(dup, ':')))
 		return -22;
 	if (!(upper = index(++lower, ':')))
@@ -1770,7 +1771,8 @@ static int overlayfs_create(struct bdev *bdev, const char *dest, const char *n,
 		return -1;
 	}
 
-	delta = strdupa(dest);
+	delta = alloca(strlen(dest)+1);
+	strcpy(delta, dest);
 	strcpy(delta+len-6, "delta0");
 
 	if (mkdir_p(delta, 0755) < 0) {

src/lxc/utils.c

@@ -184,13 +184,15 @@ extern int mkdir_p(const char *dir, mode_t mode)
 	do {
 		dir = tmp + strspn(tmp, "/");
 		tmp = dir + strcspn(dir, "/");
-		makeme = strndupa(orig, dir - orig);
+		makeme = strndup(orig, dir - orig);
 		if (*makeme) {
 			if (mkdir(makeme, mode) && errno != EEXIST) {
 				SYSERROR("failed to create directory '%s'\n", makeme);
+				free(makeme);
 				return -1;
 			}
 		}
+		free(makeme);
 	} while(tmp != dir);
 
 	return 0;