Use zalloc instead of calloc(1, ...)

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Marek Chalupa <mchqwerty@gmail.com>
diff --git a/src/cms-helper.c b/src/cms-helper.c
index c063c77..b586847 100644
--- a/src/cms-helper.c
+++ b/src/cms-helper.c
@@ -112,7 +112,7 @@
 			  void *lcms_profile)
 {
 	struct weston_color_profile *p;
-	p = calloc(1, sizeof(struct weston_color_profile));
+	p = zalloc(sizeof(struct weston_color_profile));
 	p->filename = strdup(filename);
 	p->lcms_handle = lcms_profile;
 	return p;