[Libosinfo] [libosinfo PATCH 2/3] os: Deal with a NULL profile on _find_install_script()

[Fabiano Fidêncio]

Let's ensure we're not going to crash in case a NULL profile is passed
for osinfo_find_install_script().

Also, document which are the expected values for @profile
---
 osinfo/osinfo_os.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/osinfo/osinfo_os.c b/osinfo/osinfo_os.c
index 9328820..314b4d8 100644
--- a/osinfo/osinfo_os.c
+++ b/osinfo/osinfo_os.c
@@ -956,17 +956,25 @@ void osinfo_os_add_maximum_resources(OsinfoOs *os,
 /**
  * osinfo_os_find_install_script:
  * @os:      an operating system
- * @profile: the install script profile
+ * @profile: the install script profile that must be either
+ * OSINFO_INSTALL_SCRIPT_PROFILE_DESKTOP or OSINFO_INSTALL_SCRIPT_PROFILE_JEOS
  *
  * Returns: (transfer full): A new #OsinfoInstallScript for the @os @profile
  */
 OsinfoInstallScript *osinfo_os_find_install_script(OsinfoOs *os, const gchar *profile)
 {
-    g_return_val_if_fail(OSINFO_IS_OS(os), NULL);
-    GList *scripts = osinfo_list_get_elements(OSINFO_LIST(os->priv->scripts));
-    GList *tmp = scripts;
+    GList *scripts;
+    GList *tmp;
     OsinfoInstallScript *script = NULL;
 
+    g_return_val_if_fail(OSINFO_IS_OS(os), NULL);
+
+    scripts = osinfo_list_get_elements(OSINFO_LIST(os->priv->scripts));
+    tmp = scripts;
+
+    if (profile == NULL)
+        return script;
+
     while (tmp) {
         script = tmp->data;
         if (g_str_equal(profile, osinfo_install_script_get_profile(script)))
-- 
2.19.1