core_auth: Close(master) before exit

Add a missing close(master) to the subtest group fixture to prevent a
leak during later tests.

Signed-off-by: Chris Wilson <chris.p.wilson@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

tests/core_auth.c

@@ -25,7 +25,6 @@
  * Testcase: drmGetMagic() and drmAuthMagic()
  */
 
-#include "igt.h"
 #include <unistd.h>
 #include <stdlib.h>
 #include <stdint.h>
@@ -48,6 +47,9 @@
 # include <pthread.h>
 #endif
 
+#include "igt.h"
+#include "igt_types.h"
+
 IGT_TEST_DESCRIPTION("Call drmGetMagic() and drmAuthMagic() and see if it behaves.");
 
 static bool
@@ -192,8 +194,6 @@ static void test_basic_auth(int master)
 
 igt_main
 {
-	int master;
-
 	/* root (which we run igt as) should always be authenticated */
 	igt_describe("Check drm client is always authenticated.");
 	igt_subtest("getclient-simple") {
@@ -220,6 +220,8 @@ igt_main
 
 	/* above tests require that no drm fd is open */
 	igt_subtest_group {
+		igt_fd_t(master);
+
 		igt_fixture
 			master = drm_open_driver_master(DRIVER_ANY);