diff --git a/include/linux/poison.h b/include/linux/poison.h
index 4109f37b7b66db5be8ec0c5600813c34ad73b5d5..a5347c02432e99eaa5b57ae5edeafa96c18152ee 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -45,6 +45,13 @@
 /********** drivers/atm/ **********/
 #define ATM_POISON_FREE		0x12
 
+/********** kernel/mutexes **********/
+#define MUTEX_DEBUG_INIT	0x11
+#define MUTEX_DEBUG_FREE	0x22
+
+/********** security/ **********/
+#define KEY_DESTROY		0xbd
+
 /********** sound/oss/ **********/
 #define OSS_POISON_FREE		0xAB
 
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
index 036b6285b15ccb195848a64e03fa741fd20e8d89..e38e4bac97cac6dde3cacd552f189ef77882bb62 100644
--- a/kernel/mutex-debug.c
+++ b/kernel/mutex-debug.c
@@ -16,6 +16,7 @@
 #include <linux/sched.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/poison.h>
 #include <linux/spinlock.h>
 #include <linux/kallsyms.h>
 #include <linux/interrupt.h>
@@ -381,7 +382,7 @@ void debug_mutex_set_owner(struct mutex *lock,
 
 void debug_mutex_init_waiter(struct mutex_waiter *waiter)
 {
-	memset(waiter, 0x11, sizeof(*waiter));
+	memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
 	waiter->magic = waiter;
 	INIT_LIST_HEAD(&waiter->list);
 }
@@ -397,7 +398,7 @@ void debug_mutex_wake_waiter(struct mutex *lock, struct mutex_waiter *waiter)
 void debug_mutex_free_waiter(struct mutex_waiter *waiter)
 {
 	DEBUG_WARN_ON(!list_empty(&waiter->list));
-	memset(waiter, 0x22, sizeof(*waiter));
+	memset(waiter, MUTEX_DEBUG_FREE, sizeof(*waiter));
 }
 
 void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
diff --git a/security/keys/key.c b/security/keys/key.c
index 43295ca37b5dcb7b3461dc16645513a6df84ecf8..80de8c3e9cc3ea49c79e6525b0ce17b22076ac3e 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -11,6 +11,7 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/poison.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/security.h>
@@ -988,7 +989,7 @@ void unregister_key_type(struct key_type *ktype)
 		if (key->type == ktype) {
 			if (ktype->destroy)
 				ktype->destroy(key);
-			memset(&key->payload, 0xbd, sizeof(key->payload));
+			memset(&key->payload, KEY_DESTROY, sizeof(key->payload));
 		}
 	}