Use zalloc instead of malloc + memset

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>

src/connection.c

@@ -163,10 +163,10 @@ wl_connection_create(int fd)
 {
 	struct wl_connection *connection;
 
-	connection = malloc(sizeof *connection);
+	connection = zalloc(sizeof *connection);
 	if (connection == NULL)
 		return NULL;
-	memset(connection, 0, sizeof *connection);
+
 	connection->fd = fd;
 
 	return connection;

src/wayland-client.c

@@ -331,12 +331,10 @@ proxy_create(struct wl_proxy *factory, const struct wl_interface *interface)
 	struct wl_proxy *proxy;
 	struct wl_display *display = factory->display;
 
-	proxy = malloc(sizeof *proxy);
+	proxy = zalloc(sizeof *proxy);
 	if (proxy == NULL)
 		return NULL;
 
-	memset(proxy, 0, sizeof *proxy);
-
 	proxy->object.interface = interface;
 	proxy->display = display;
 	proxy->queue = factory->queue;
@@ -387,12 +385,10 @@ wl_proxy_create_for_id(struct wl_proxy *factory,
 	struct wl_proxy *proxy;
 	struct wl_display *display = factory->display;
 
-	proxy = malloc(sizeof *proxy);
+	proxy = zalloc(sizeof *proxy);
 	if (proxy == NULL)
 		return NULL;
 
-	memset(proxy, 0, sizeof *proxy);
-
 	proxy->object.interface = interface;
 	proxy->object.id = id;
 	proxy->display = display;
@@ -817,14 +813,12 @@ wl_display_connect_to_fd(int fd)
 	if (debug && (strstr(debug, "client") || strstr(debug, "1")))
 		debug_client = 1;
 
-	display = malloc(sizeof *display);
+	display = zalloc(sizeof *display);
 	if (display == NULL) {
 		close(fd);
 		return NULL;
 	}
 
-	memset(display, 0, sizeof *display);
-
 	display->fd = fd;
 	wl_map_init(&display->objects, WL_MAP_CLIENT_SIDE);
 	wl_event_queue_init(&display->default_queue, display);

src/wayland-private.h

@@ -29,6 +29,7 @@
 #define WAYLAND_PRIVATE_H
 
 #include <stdarg.h>
+#include <stdlib.h>
 
 #define WL_HIDE_DEPRECATED 1
 
@@ -216,4 +217,10 @@ struct wl_display;
 struct wl_array *
 wl_display_get_additional_shm_formats(struct wl_display *display);
 
+static inline void *
+zalloc(size_t s)
+{
+	return calloc(1, s);
+}
+
 #endif

src/wayland-server.c

@@ -415,11 +415,10 @@ wl_client_create(struct wl_display *display, int fd)
 	struct wl_client *client;
 	socklen_t len;
 
-	client = malloc(sizeof *client);
+	client = zalloc(sizeof *client);
 	if (client == NULL)
 		return NULL;
 
-	memset(client, 0, sizeof *client);
 	client->display = display;
 	client->source = wl_event_loop_add_fd(display->loop, fd,
 					      WL_EVENT_READABLE,
@@ -854,11 +853,10 @@ wl_socket_alloc(void)
 {
 	struct wl_socket *s;
 
-	s = malloc(sizeof *s);
+	s = zalloc(sizeof *s);
 	if (!s)
 		return NULL;
 
-	memset(s, 0, sizeof *s);
 	s->fd = -1;
 	s->fd_lock = -1;
 

src/wayland-shm.c

@@ -536,12 +536,10 @@ wl_shm_buffer_begin_access(struct wl_shm_buffer *buffer)
 
 	sigbus_data = pthread_getspecific(wl_shm_sigbus_data_key);
 	if (sigbus_data == NULL) {
-		sigbus_data = malloc(sizeof *sigbus_data);
+		sigbus_data = zalloc(sizeof *sigbus_data);
 		if (sigbus_data == NULL)
 			return;
 
-		memset(sigbus_data, 0, sizeof *sigbus_data);
-
 		pthread_setspecific(wl_shm_sigbus_data_key, sigbus_data);
 	}