Add return value for non-void function return statements to fix error in clang build.

Clang defaults this warning to an error, breaking the build & causing
these tests not to run.

gdb/testsuite/

	* gdb.mi/non-stop.c: Add return value for non-void function return
	statement.
	* gdb.threads/staticthreads.c: Ditto.

3 files changed, 8 insertions, 2 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 730c116cefd..2e9024ffcae 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2014-04-14  David Blaikie <dblaikie@gmail.com>
+
+	* gdb.mi/non-stop.c: Add return value for non-void function return
+	statement.
+	* gdb.threads/staticthreads.c: Ditto.
+
 2014-04-12  Siva Chandra Reddy  <sivachandra@google.com>
 	    Doug Evans  <xdje42@gmail.com>
 
diff --git a/gdb/testsuite/gdb.mi/non-stop.c b/gdb/testsuite/gdb.mi/non-stop.c
index f03180e3a8f..67b68aaaa6e 100644
--- a/gdb/testsuite/gdb.mi/non-stop.c
+++ b/gdb/testsuite/gdb.mi/non-stop.c
@@ -56,7 +56,7 @@ worker (void *arg)
 	unslept = sleep (unslept);
 
       if (exit_first_thread && id == 0)
-	return;
+	return NULL;
 
       break_at_me (id, i);
     }
diff --git a/gdb/testsuite/gdb.threads/staticthreads.c b/gdb/testsuite/gdb.threads/staticthreads.c
index f98f4f1d8f6..e834d7f4655 100644
--- a/gdb/testsuite/gdb.threads/staticthreads.c
+++ b/gdb/testsuite/gdb.threads/staticthreads.c
@@ -37,7 +37,7 @@ thread_function (void *arg)
       if (errno != EINTR)
 	{
 	  perror ("thread_function");
-	  return;
+	  return NULL;
 	}
     }
   return NULL;