gfs2: Lock holder cleanup (fixup)

Function gfs2_holder_initialized should be used in do_flock as well.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index c2062a1..bb48074 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -1030,8 +1030,7 @@
 
 	mutex_lock(&fp->f_fl_mutex);
 
-	gl = fl_gh->gh_gl;
-	if (gl) {
+	if (gfs2_holder_initialized(fl_gh)) {
 		if (fl_gh->gh_state == state)
 			goto out;
 		locks_lock_file_wait(file,