git: iwn - Clean up memory freeing.

[Joe Talbott <josepht@xxxxxxxxxxxxxxxxxxxxxxx>]

commit bbae44312935a4fcc7f424b4507155de79767780
Author: Joe Talbott <josepht@dragonflybsd.org>
Date:   Sun Jul 25 18:27:29 2010 -0400

    iwn - Clean up memory freeing.
    
    * Mark variables with NULL after freeing.
    * Properly free dma memory.

Summary of changes:
 sys/dev/netif/iwn/if_iwn.c |   16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/bbae44312935a4fcc7f424b4507155de79767780


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