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a220858d30
We just found a bug in zd1211rw where it would reject packets in the ->tx() method but leave them modified, which would cause retransmit attempts with completely bogus skbs, eventually leading to a panic due to not having enough headroom in those. This patch adds a sanity check to mac80211 to catch such driver mistakes; in this case we warn and drop the skb. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>