[Qemu-devel] Re: sparc32 fix np dereference in do_unassigned_access

[Blue Swirl <blauwirbel@gmail.com>]

Thanks, applied.


On Fri, Jan 22, 2010 at 9:31 PM, Artyom Tarasenko
<atar4qemu@googlemail.com> wrote:
> fix a potential null pointer dereference introduced in
> commit  576c2cdc767ab9e2dc038fa4c99f22e53287a3de
>
> Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
> ---
> diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c
> index ce8c6f1..eb4f5a4 100644
> --- a/target-sparc/op_helper.c
> +++ b/target-sparc/op_helper.c
> @@ -3761,13 +3761,14 @@ void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
>         else
>             raise_exception(TT_DATA_ACCESS);
>     }
> -    env = saved_env;
>
>     /* flush neverland mappings created during no-fault mode,
>        so the sequential MMU faults report proper fault types */
>     if (env->mmuregs[0] & MMU_NF) {
>         tlb_flush(env, 1);
>     }
> +
> +    env = saved_env;
>  }
>  #else
>  void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
>