diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index 16b46aa..664d68c 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -243,11 +243,11 @@
 #define PNP_CONFIGURABLE	0x0008
 #define PNP_REMOVABLE		0x0010
 
-#define pnp_can_read(dev)	(((dev)->protocol) && ((dev)->protocol->get) && \
+#define pnp_can_read(dev)	(((dev)->protocol->get) && \
 				 ((dev)->capabilities & PNP_READ))
-#define pnp_can_write(dev)	(((dev)->protocol) && ((dev)->protocol->set) && \
+#define pnp_can_write(dev)	(((dev)->protocol->set) && \
 				 ((dev)->capabilities & PNP_WRITE))
-#define pnp_can_disable(dev)	(((dev)->protocol) && ((dev)->protocol->disable) && \
+#define pnp_can_disable(dev)	(((dev)->protocol->disable) && \
 				 ((dev)->capabilities & PNP_DISABLE))
 #define pnp_can_configure(dev)	((!(dev)->active) && \
 				 ((dev)->capabilities & PNP_CONFIGURABLE))