sparc64: Sync FPU state in VIS emulation handler.

Copy the FPU state to the task's thread_info->fpregs for the VIS emulation
functions to access.

Signed-off-by: Hong H. Pham <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

arch/sparc64/kernel/visemul.c

···
 	if (get_user(insn, (u32 __user *) pc))
 		return -EFAULT;
 
+	save_and_clear_fpu();
+
 	opf = (insn & VIS_OPF_MASK) >> VIS_OPF_SHIFT;
 	switch (opf) {
 	default: