xen-netfront: Avoid deref'ing skbafter it is potentially freed.
xen-netfront: Avoid deref'ing skbafter it is potentially freed.

xennet_tx_bug_gc can free the skb before we use it, so make sure we don't.

Signed-off-by: Keir Fraser <69344103cc60b36d6e1fbdc31ce6504b2286c646@xensource.com>
Signed-off-by: Jeremy Fitzhardinge <b3f594e10a9edcf5413cf1190121d45078c62290@xensource.com>
Cc: Jeff Garzik <f3e731dfa293c7a83119d8aacfa41b5d2d780be9@garzik.org>
Signed-off-by: Jeff Garzik <f3e731dfa293c7a83119d8aacfa41b5d2d780be9@garzik.org>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs