get_insn_opcode is broken (ll/sc emulation does not work)

[Atsushi Nemoto <nemoto@toshiba-tops.co.jp>]

I found that get_insn_opcode(in traps.c) is broken.


static inline int get_insn_opcode(struct pt_regs *regs, unsigned int *opcode)
...
	if (!get_user(opcode, epc))


This must be:


static inline int get_insn_opcode(struct pt_regs *regs, unsigned int *opcode)
...
	if (!get_user(*opcode, epc))


Without this fix, ll/sc emulation might not work.

---
Atsushi Nemoto