initrd: fix memory leak

Signed-off-by: Antonio Cardace <acardace@redhat.com>
Fixes: 9f960955 ('initrd: add configuration generator')
(cherry picked from commit d5c05d07)
(cherry picked from commit bba54613)

shared/nm-glib-aux/nm-macros-internal.h

@@ -216,6 +216,14 @@ NM_AUTO_DEFINE_FCN0 (GError *, gs_local_free_error, g_error_free)
 #define gs_unref_keyfile nm_auto(gs_local_keyfile_unref)
 NM_AUTO_DEFINE_FCN0 (GKeyFile *, gs_local_keyfile_unref, g_key_file_unref)
 
+/**
+ * gs_free_option_context:
+ *
+ * Call g_option_context_free() on a variable location when it goes out of scope.
+ */
+#define gs_free_option_context nm_auto(gs_local_option_context)
+NM_AUTO_DEFINE_FCN0 (GOptionContext *, gs_local_option_context, g_option_context_free);
+
 /*****************************************************************************/
 
 #include "nm-glib.h"

src/initrd/nm-initrd-generator.c

@@ -80,7 +80,7 @@ main (int argc, char *argv[])
 		{ G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &remaining, NULL, NULL },
 		{ NULL }
 	};
-	GOptionContext *option_context;
+	gs_free_option_context GOptionContext *option_context = NULL;
 	GError *error = NULL;
 	int errsv;