gru: fix bug in module unload

Fix bug in module unload.  Previous code was not correctly deleting the
files in /proc.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index a8a2e76..4f6fc11 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -351,7 +351,7 @@
 		for (p = proc_files; p->name; p++)
 			if (p->entry)
 				remove_proc_entry(p->name, proc_gru);
-		remove_proc_entry("gru", NULL);
+		remove_proc_entry("gru", proc_gru->parent);
 	}
 }