mm: Convert print_symbol to %pSR

Use the new vsprintf extension to avoid any possible
message interleaving.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/mm/slab.c b/mm/slab.c
index 856e4a1..96079244 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2040,11 +2040,9 @@
 	}
 
 	if (cachep->flags & SLAB_STORE_USER) {
-		printk(KERN_ERR "Last user: [<%p>]",
-			*dbg_userword(cachep, objp));
-		print_symbol("(%s)",
-				(unsigned long)*dbg_userword(cachep, objp));
-		printk("\n");
+		printk(KERN_ERR "Last user: [<%p>](%pSR)\n",
+		       *dbg_userword(cachep, objp),
+		       *dbg_userword(cachep, objp));
 	}
 	realobj = (char *)objp + obj_offset(cachep);
 	size = cachep->object_size;