SELinux: fix bug in new ebitmap code.

The "e_iter = e_iter->next;" statement in the inner for loop is primally
bug.  It should be moved to outside of the for loop.
Signed-off-by: KaiGai Kohei <kaigai@kaigai.gr.jp>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>

security/selinux/ss/ebitmap.c

@@ -129,8 +129,8 @@ int ebitmap_netlbl_export(struct ebitmap *ebmap,
 			cmap_sft = delta % NETLBL_CATMAP_MAPSIZE;
 			c_iter->bitmap[cmap_idx]
 				|= e_iter->maps[cmap_idx] << cmap_sft;
-			e_iter = e_iter->next;
 		}
+		e_iter = e_iter->next;
 	}
 
 	return 0;