hibernate-resume-generator: use static destructor and DEFINE_MAIN_FUNCTION() macro

diff --git a/src/hibernate-resume/hibernate-resume-generator.c b/src/hibernate-resume/hibernate-resume-generator.c
index fd58720779225ca13f7628807cf5e98856efe918..64c184558f174f3cd537bb7cf425890437d7bd0c 100644 (file)
--- a/src/hibernate-resume/hibernate-resume-generator.c
+++ b/src/hibernate-resume/hibernate-resume-generator.c
@@ -7,6 +7,7 @@
 #include "fstab-util.h"
 #include "generator.h"
 #include "log.h"
+#include "main-func.h"
 #include "mkdir.h"
 #include "proc-cmdline.h"
 #include "special.h"
@@ -18,6 +19,8 @@ static const char *arg_dest = "/tmp";
 static char *arg_resume_device = NULL;
 static bool arg_noresume = false;
 
+STATIC_DESTRUCTOR_REGISTER(arg_resume_device, freep);
+
 static int parse_proc_cmdline_item(const char *key, const char *value, void *data) {
 
         if (streq(key, "resume")) {
@@ -66,7 +69,7 @@ static int process_resume(void) {
         return 0;
 }
 
-int main(int argc, char *argv[]) {
+static int run(int argc, char *argv[]) {
         int r = 0;
 
         log_setup_generator();
@@ -75,7 +78,7 @@ int main(int argc, char *argv[]) {
 
         if (argc > 1 && argc != 4) {
                 log_error("This program takes three or no arguments.");
-                return EXIT_FAILURE;
+                return -EINVAL;
         }
 
         if (argc > 1)
@@ -84,7 +87,7 @@ int main(int argc, char *argv[]) {
         /* Don't even consider resuming outside of initramfs. */
         if (!in_initrd()) {
                 log_debug("Not running in an initrd, quitting.");
-                return EXIT_SUCCESS;
+                return 0;
         }
 
         r = proc_cmdline_parse(parse_proc_cmdline_item, NULL, 0);
@@ -93,14 +96,10 @@ int main(int argc, char *argv[]) {
 
         if (arg_noresume) {
                 log_notice("Found \"noresume\" on the kernel command line, quitting.");
-                r = 0;
-                goto finish;
+                return 0;
         }
 
-        r = process_resume();
-
-finish:
-        free(arg_resume_device);
-
-        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+        return process_resume();
 }
+
+DEFINE_MAIN_FUNCTION(run);