[PATCH 1/2] RISC-V: Fix use-after free bug

[Nick Clifton]

Hi Palmer,

> 2017-07-25  Andrew Waterman  <andrew@sifive.com>
> 
> 	* config/tc-riscv.c (riscv_set_arch): Obviate use-after-free.

Approved and applied.

Cheers
  Nick