提交 5e0373b8 编写于 作者: A Atsushi Nemoto 提交者: Ralf Baechle

[MIPS] Add some __user tags

Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
上级 e70dfc10
......@@ -22,7 +22,8 @@
*/
int __compute_return_epc(struct pt_regs *regs)
{
unsigned int *addr, bit, fcr31, dspcontrol;
unsigned int __user *addr;
unsigned int bit, fcr31, dspcontrol;
long epc;
union mips_instruction insn;
......@@ -33,7 +34,7 @@ int __compute_return_epc(struct pt_regs *regs)
/*
* Read the instruction
*/
addr = (unsigned int *) epc;
addr = (unsigned int __user *) epc;
if (__get_user(insn.word, addr)) {
force_sig(SIGSEGV, current);
return -EFAULT;
......
......@@ -131,7 +131,7 @@ static void show_stacktrace(struct task_struct *task, struct pt_regs *regs)
const int field = 2 * sizeof(unsigned long);
long stackdata;
int i;
unsigned long *sp = (unsigned long *)regs->regs[29];
unsigned long __user *sp = (unsigned long __user *)regs->regs[29];
printk("Stack :");
i = 0;
......
......@@ -54,8 +54,7 @@ struct emuframe {
int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc)
{
extern asmlinkage void handle_dsemulret(void);
mips_instruction *dsemul_insns;
struct emuframe *fr;
struct emuframe __user *fr;
int err;
if (ir == 0) { /* a nop is easy */
......@@ -87,8 +86,8 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc)
*/
/* Ensure that the two instructions are in the same cache line */
dsemul_insns = (mips_instruction *) ((regs->regs[29] - sizeof(struct emuframe)) & ~0x7);
fr = (struct emuframe *) dsemul_insns;
fr = (struct emuframe __user *)
((regs->regs[29] - sizeof(struct emuframe)) & ~0x7);
/* Verify that the stack pointer is not competely insane */
if (unlikely(!access_ok(VERIFY_WRITE, fr, sizeof(struct emuframe))))
......@@ -113,12 +112,13 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc)
int do_dsemulret(struct pt_regs *xcp)
{
struct emuframe *fr;
struct emuframe __user *fr;
unsigned long epc;
u32 insn, cookie;
int err = 0;
fr = (struct emuframe *) (xcp->cp0_epc - sizeof(mips_instruction));
fr = (struct emuframe __user *)
(xcp->cp0_epc - sizeof(mips_instruction));
/*
* If we can't even access the area, something is very wrong, but we'll
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册