[patch] check for null return from linux_link_hash_lookup

[Alan Modra]

On Thu, Jul 05, 2007 at 04:22:12PM -0700, msnyder@sonic.net wrote:
> Flagged by Coverity -- two results from the lookup function,
> only one of which is checked for NULL.

Checking the second one isn't necessary.

-- 
Alan Modra
Australia Development Lab, IBM