diff options
| -rw-r--r-- | arch/s390/kernel/ptrace.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 38ff2bce120..75c496f4f16 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -204,7 +204,6 @@ static unsigned long __peek_user(struct task_struct *child, addr_t addr) static int peek_user(struct task_struct *child, addr_t addr, addr_t data) { - struct user *dummy = NULL; addr_t tmp, mask; /* @@ -213,8 +212,8 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data) */ mask = __ADDR_MASK; #ifdef CONFIG_64BIT - if (addr >= (addr_t) &dummy->regs.acrs && - addr < (addr_t) &dummy->regs.orig_gpr2) + if (addr >= (addr_t) &((struct user *) NULL)->regs.acrs && + addr < (addr_t) &((struct user *) NULL)->regs.orig_gpr2) mask = 3; #endif if ((addr & mask) || addr > sizeof(struct user) - __ADDR_MASK) @@ -312,7 +311,6 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data) static int poke_user(struct task_struct *child, addr_t addr, addr_t data) { - struct user *dummy = NULL; addr_t mask; /* @@ -321,8 +319,8 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data) */ mask = __ADDR_MASK; #ifdef CONFIG_64BIT - if (addr >= (addr_t) &dummy->regs.acrs && - addr < (addr_t) &dummy->regs.orig_gpr2) + if (addr >= (addr_t) &((struct user *) NULL)->regs.acrs && + addr < (addr_t) &((struct user *) NULL)->regs.orig_gpr2) mask = 3; #endif if ((addr & mask) || addr > sizeof(struct user) - __ADDR_MASK) |