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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 @@
45/********** drivers/atm/ **********/ 45/********** drivers/atm/ **********/
46#define ATM_POISON_FREE 0x12 46#define ATM_POISON_FREE 0x12
47 47
48/********** kernel/mutexes **********/
49#define MUTEX_DEBUG_INIT 0x11
50#define MUTEX_DEBUG_FREE 0x22
51
52/********** security/ **********/
53#define KEY_DESTROY 0xbd
54
48/********** sound/oss/ **********/ 55/********** sound/oss/ **********/
49#define OSS_POISON_FREE 0xAB 56#define OSS_POISON_FREE 0xAB
50 57
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 @@
16#include <linux/sched.h> 16#include <linux/sched.h>
17#include <linux/delay.h> 17#include <linux/delay.h>
18#include <linux/module.h> 18#include <linux/module.h>
19#include <linux/poison.h>
19#include <linux/spinlock.h> 20#include <linux/spinlock.h>
20#include <linux/kallsyms.h> 21#include <linux/kallsyms.h>
21#include <linux/interrupt.h> 22#include <linux/interrupt.h>
@@ -381,7 +382,7 @@ void debug_mutex_set_owner(struct mutex *lock,
381 382
382void debug_mutex_init_waiter(struct mutex_waiter *waiter) 383void debug_mutex_init_waiter(struct mutex_waiter *waiter)
383{ 384{
384 memset(waiter, 0x11, sizeof(*waiter)); 385 memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
385 waiter->magic = waiter; 386 waiter->magic = waiter;
386 INIT_LIST_HEAD(&waiter->list); 387 INIT_LIST_HEAD(&waiter->list);
387} 388}
@@ -397,7 +398,7 @@ void debug_mutex_wake_waiter(struct mutex *lock, struct mutex_waiter *waiter)
397void debug_mutex_free_waiter(struct mutex_waiter *waiter) 398void debug_mutex_free_waiter(struct mutex_waiter *waiter)
398{ 399{
399 DEBUG_WARN_ON(!list_empty(&waiter->list)); 400 DEBUG_WARN_ON(!list_empty(&waiter->list));
400 memset(waiter, 0x22, sizeof(*waiter)); 401 memset(waiter, MUTEX_DEBUG_FREE, sizeof(*waiter));
401} 402}
402 403
403void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter, 404void 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 @@
11 11
12#include <linux/module.h> 12#include <linux/module.h>
13#include <linux/init.h> 13#include <linux/init.h>
14#include <linux/poison.h>
14#include <linux/sched.h> 15#include <linux/sched.h>
15#include <linux/slab.h> 16#include <linux/slab.h>
16#include <linux/security.h> 17#include <linux/security.h>
@@ -988,7 +989,7 @@ void unregister_key_type(struct key_type *ktype)
988 if (key->type == ktype) { 989 if (key->type == ktype) {
989 if (ktype->destroy) 990 if (ktype->destroy)
990 ktype->destroy(key); 991 ktype->destroy(key);
991 memset(&key->payload, 0xbd, sizeof(key->payload)); 992 memset(&key->payload, KEY_DESTROY, sizeof(key->payload));
992 } 993 }
993 } 994 }
994 995