diff options
Diffstat (limited to 'arch/mn10300')
| -rw-r--r-- | arch/mn10300/include/asm/processor.h | 1 | ||||
| -rw-r--r-- | arch/mn10300/include/asm/uaccess.h | 8 | ||||
| -rw-r--r-- | arch/mn10300/kernel/signal.c | 6 | ||||
| -rw-r--r-- | arch/mn10300/kernel/vmlinux.lds.S | 1 | ||||
| -rw-r--r-- | arch/mn10300/lib/usercopy.c | 4 |
5 files changed, 8 insertions, 12 deletions
diff --git a/arch/mn10300/include/asm/processor.h b/arch/mn10300/include/asm/processor.h index 769d5ed8e992..b10ba121c849 100644 --- a/arch/mn10300/include/asm/processor.h +++ b/arch/mn10300/include/asm/processor.h @@ -18,7 +18,6 @@ #include <asm/page.h> #include <asm/ptrace.h> #include <asm/cpu-regs.h> -#include <asm/uaccess.h> #include <asm/current.h> /* Forward declaration, a strange C thing */ diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h index 20f7bf6de384..2eedf6f46a57 100644 --- a/arch/mn10300/include/asm/uaccess.h +++ b/arch/mn10300/include/asm/uaccess.h @@ -38,7 +38,6 @@ #define get_ds() (KERNEL_DS) #define get_fs() (current_thread_info()->addr_limit) #define set_fs(x) (current_thread_info()->addr_limit = (x)) -#define __kernel_ds_p() (current_thread_info()->addr_limit.seg == 0x9FFFFFFF) #define segment_eq(a, b) ((a).seg == (b).seg) @@ -72,12 +71,6 @@ static inline int ___range_ok(unsigned long addr, unsigned int size) #define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0) #define __access_ok(addr, size) (__range_ok((addr), (size)) == 0) -static inline int verify_area(int type, const void *addr, unsigned long size) -{ - return access_ok(type, addr, size) ? 0 : -EFAULT; -} - - /* * The exception table consists of pairs of addresses: the first is the * address of an instruction that is allowed to fault, and the second is @@ -166,6 +159,7 @@ struct __large_struct { unsigned long buf[100]; }; "2:\n" \ " .section .fixup,\"ax\"\n" \ "3:\n\t" \ + " mov 0,%1\n" \ " mov %3,%0\n" \ " jmp 2b\n" \ " .previous\n" \ diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c index dfd0301cf200..cd8cb1d1176b 100644 --- a/arch/mn10300/kernel/signal.c +++ b/arch/mn10300/kernel/signal.c @@ -75,7 +75,7 @@ static int restore_sigcontext(struct pt_regs *regs, struct fpucontext *buf; err |= __get_user(buf, &sc->fpucontext); if (buf) { - if (verify_area(VERIFY_READ, buf, sizeof(*buf))) + if (!access_ok(VERIFY_READ, buf, sizeof(*buf))) goto badframe; err |= fpu_restore_sigcontext(buf); } @@ -98,7 +98,7 @@ asmlinkage long sys_sigreturn(void) long d0; frame = (struct sigframe __user *) current_frame()->sp; - if (verify_area(VERIFY_READ, frame, sizeof(*frame))) + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; if (__get_user(set.sig[0], &frame->sc.oldmask)) goto badframe; @@ -130,7 +130,7 @@ asmlinkage long sys_rt_sigreturn(void) long d0; frame = (struct rt_sigframe __user *) current_frame()->sp; - if (verify_area(VERIFY_READ, frame, sizeof(*frame))) + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) goto badframe; diff --git a/arch/mn10300/kernel/vmlinux.lds.S b/arch/mn10300/kernel/vmlinux.lds.S index 13c4814c29f8..2d5f1c3f1afb 100644 --- a/arch/mn10300/kernel/vmlinux.lds.S +++ b/arch/mn10300/kernel/vmlinux.lds.S @@ -30,6 +30,7 @@ SECTIONS HEAD_TEXT TEXT_TEXT SCHED_TEXT + CPUIDLE_TEXT LOCK_TEXT KPROBES_TEXT *(.fixup) diff --git a/arch/mn10300/lib/usercopy.c b/arch/mn10300/lib/usercopy.c index 7826e6c364e7..ce8899e5e171 100644 --- a/arch/mn10300/lib/usercopy.c +++ b/arch/mn10300/lib/usercopy.c @@ -9,7 +9,7 @@ * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ -#include <asm/uaccess.h> +#include <linux/uaccess.h> unsigned long __generic_copy_to_user(void *to, const void *from, unsigned long n) @@ -24,6 +24,8 @@ __generic_copy_from_user(void *to, const void *from, unsigned long n) { if (access_ok(VERIFY_READ, from, n)) __copy_user_zeroing(to, from, n); + else + memset(to, 0, n); return n; } |
