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-rw-r--r--include/linux/poison.h7
-rw-r--r--kernel/mutex-debug.c5
-rw-r--r--security/keys/key.c3
3 files changed, 12 insertions, 3 deletions
diff --git a/include/linux/poison.h b/include/linux/poison.h
index 4109f37b7b66..a5347c02432e 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 036b6285b15c..e38e4bac97ca 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 43295ca37b5d..80de8c3e9cc3 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));
}
}