Re: [Qemu-devel] [PATCH 6/7] Fix zero-length write(2).

[Aurelien Jarno <aurelien@aurel32.net>]

On Mon, Mar 29, 2010 at 10:54:42AM -0700, Richard Henderson wrote:
> Signed-off-by: Richard Henderson <rth@twiddle.net>

Thanks, applied.

> ---
>  exec.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/exec.c b/exec.c
> index 33854e1..d69194c 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -2461,6 +2461,9 @@ int page_check_range(target_ulong start, target_ulong len, int flags)
>      assert(start < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS));
>  #endif
>  
> +    if (len == 0) {
> +        return 0;
> +    }
>      if (start + len - 1 < start) {
>          /* We've wrapped around.  */
>          return -1;
> -- 
> 1.6.6.1
> 
> 
> 
> 

-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net