[PATCH] Fix rm9000 performance counter handler

["Dajie Tan" <jiankemeng@gmail.com>]

The new type of irq handler remove a parameter (struct pt_regs *),but
someone forgot to supply it.

Signed-off-by:
---

diff --git a/arch/mips/oprofile/op_model_rm9000.c
b/arch/mips/oprofile/op_model_rm9000.c
index 7dc9bf6..98b5257 100644
--- a/arch/mips/oprofile/op_model_rm9000.c
+++ b/arch/mips/oprofile/op_model_rm9000.c
@@ -85,6 +85,7 @@ static irqreturn_t rm9000_perfcount_handler(int irq,
void * dev_id)
        unsigned int control = read_c0_perfcontrol();
        uint32_t counter1, counter2;
        uint64_t counters;
+       struct pt_regs *regs = get_irq_regs();

        /*
         * RM9000 combines two 32-bit performance counters into a single