Re: [PATCH] gianfar: fix potential sk_wmem_alloc imbalance

From: Eric Dumazet <redacted>
Date: Thu, 05 Jul 2012 23:45:13 +0200

From: Eric Dumazet <edumazet@google.com>

commit db83d136d7f753 (gianfar: Fix missing sock reference when
processing TX time stamps) added a potential sk_wmem_alloc imbalance

If the new skb has a different truesize than old one, we can get a
negative sk_wmem_alloc once new skb is orphaned at TX completion.

Now we no longer early orphan skbs in dev_hard_start_xmit(), this
probably can lead to fatal bugs.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Manfred Rudigier <redacted>
Cc: Claudiu Manoil <redacted>
Cc: Jiajun Wu <redacted>
Cc: Paul Gortmaker <redacted>
Cc: Andy Fleming <redacted>

Now that this has been tested by Paul, I've applied it.

Thanks.