Introduce udev object cleanup functions

src/test/test-libudev.c

@@ -29,6 +29,7 @@
 #include <sys/epoll.h>
 
 #include "libudev.h"
+#include "udev-util.h"
 #include "util.h"
 
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
@@ -117,7 +118,7 @@ static void print_device(struct udev_device *device)
 
 static int test_device(struct udev *udev, const char *syspath)
 {
-        struct udev_device *device;
+        _cleanup_udev_device_unref_ struct udev_device *device;
 
         printf("looking at device: %s\n", syspath);
         device = udev_device_new_from_syspath(udev, syspath);
@@ -126,13 +127,13 @@ static int test_device(struct udev *udev, const char *syspath)
                 return -1;
         }
         print_device(device);
-        udev_device_unref(device);
+
         return 0;
 }
 
 static int test_device_parents(struct udev *udev, const char *syspath)
 {
-        struct udev_device *device;
+        _cleanup_udev_device_unref_ struct udev_device *device;
         struct udev_device *device_parent;
 
         printf("looking at device: %s\n", syspath);
@@ -153,7 +154,6 @@ static int test_device_parents(struct udev *udev, const char *syspath)
                 print_device(device_parent);
                 device_parent = udev_device_get_parent(device_parent);
         } while (device_parent != NULL);
-        udev_device_unref(device);
 
         return 0;
 }

src/test/test-udev.c

@@ -34,6 +34,7 @@
 
 #include "missing.h"
 #include "udev.h"
+#include "udev-util.h"
 
 void udev_main_log(struct udev *udev, int priority,
                    const char *file, int line, const char *fn,
@@ -82,10 +83,10 @@ out:
 
 int main(int argc, char *argv[])
 {
-        struct udev *udev;
-        struct udev_event *event = NULL;
-        struct udev_device *dev = NULL;
-        struct udev_rules *rules = NULL;
+        _cleanup_udev_unref_ struct udev *udev = NULL;
+        _cleanup_udev_event_unref_ struct udev_event *event = NULL;
+        _cleanup_udev_device_unref_ struct udev_device *dev = NULL;
+        _cleanup_udev_rules_unref_ struct udev_rules *rules = NULL;
         char syspath[UTIL_PATH_SIZE];
         const char *devpath;
         const char *action;
@@ -98,7 +99,8 @@ int main(int argc, char *argv[])
 
         udev = udev_new();
         if (udev == NULL)
-                exit(EXIT_FAILURE);
+                return EXIT_FAILURE;
+
         log_debug("version %s\n", VERSION);
         label_init("/dev");
 
@@ -160,12 +162,7 @@ int main(int argc, char *argv[])
 out:
         if (event != NULL && event->fd_signal >= 0)
                 close(event->fd_signal);
-        udev_event_unref(event);
-        udev_device_unref(dev);
-        udev_rules_unref(rules);
         label_finish();
-        udev_unref(udev);
-        if (err != 0)
-                return EXIT_FAILURE;
-        return EXIT_SUCCESS;
+
+        return err ? EXIT_FAILURE : EXIT_SUCCESS;
 }