diff --git a/[refs] b/[refs]
index d01a81a3d21c..9639c66ad1db 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 706b7e1573d7b7ad7825e84a6dcfb3d533993b83
+refs/heads/master: 072b7a58ca534a667f9649ead1628dfb20087e4b
diff --git a/trunk/arch/x86/kernel/ds.c b/trunk/arch/x86/kernel/ds.c
index 1c5ca4d18787..dcd918c1580d 100644
--- a/trunk/arch/x86/kernel/ds.c
+++ b/trunk/arch/x86/kernel/ds.c
@@ -223,7 +223,7 @@ int ds_free(void **dsp)
 	if (*dsp)
 		kfree((void *)get_bts_buffer_base(*dsp));
 	kfree(*dsp);
-	*dsp = 0;
+	*dsp = NULL;
 
 	return 0;
 }