[PATCH] Bug Fix: Fix rtnl_link_af_data_compare return value

[Thomas Graf]

On 02/15/13 at 10:26am, roopa at cumulusnetworks.com wrote:
> From: roopa <roopa at cumulusnetworks.com>
> 
> This patch fixes a bug where because of the af_ops check
> being first in the function, we were returning ~0 if af_ops
> was null even if both objects really did not have af_data
> and we should be returning 0.
> 
> Its better to have the af_data present check before anything else.
> 
> So, Rearranged some of the code in rtnl_link_af_data_compare.
> Changes include:
> 	- Do the attribute present check before anything else
> 	- If ao_compare op not present, return ~0
> 
> Signed-off-by: Roopa Prabhu <roopa at cumulusnetworks.com>
> Reviewed-by: Nolan Leake <nolan at cumulusnetworks.com>
> Reviewed-by: Shrijeet Mukherjee <shm at cumulusnetworks.com>
> Reviewed-by: Wilson Kok <wkok at cumulusnetworks.com>

Applied, thanks.