[balsa/gtk3] Allow NULL search iter

[Peter Bloomfield <PeterB src gnome org>]

commit 6eddbd371937bcc1cce3e4e6b3242ff8b7c32e6f
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Mon Feb 25 17:45:07 2013 -0500

    Allow NULL search iter
    
        * libbalsa/mailbox.c (libbalsa_mailbox_search_iter_ref): allow
        NULL iter.

 ChangeLog          |    5 +++++
 libbalsa/mailbox.c |    8 +++-----
 2 files changed, 8 insertions(+), 5 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 960fe35..366eea2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2013-02-25  Peter Bloomfield
 
+       * libbalsa/mailbox.c (libbalsa_mailbox_search_iter_ref): allow
+       NULL iter.
+
+2013-02-25  Peter Bloomfield
+
        * configure.in: actually error out if libsecret devel is not
        installed.
 
diff --git a/libbalsa/mailbox.c b/libbalsa/mailbox.c
index 7d34903..d8729eb 100644
--- a/libbalsa/mailbox.c
+++ b/libbalsa/mailbox.c
@@ -1677,16 +1677,14 @@ libbalsa_mailbox_search_iter_view(LibBalsaMailbox * mailbox)
 LibBalsaMailboxSearchIter *
 libbalsa_mailbox_search_iter_ref(LibBalsaMailboxSearchIter * search_iter)
 {
-    g_return_val_if_fail(search_iter != NULL, NULL);
-    g_return_val_if_fail(search_iter->ref_count > 0, NULL);
-
-    ++search_iter->ref_count;
+    if (search_iter)
+        ++search_iter->ref_count;
 
     return search_iter;
 }
 
 /* Decrement reference count of a LibBalsaMailboxSearchIter, if it is
- * non-NULL and validi, and free it if it goes to zero */
+ * non-NULL and valid, and free it if it goes to zero */
 void
 libbalsa_mailbox_search_iter_unref(LibBalsaMailboxSearchIter * search_iter)
 {