Douglas Caetano dos Santos f79d3307c0 net/packet: fix missing net_device reference release
[ Upstream commit d19b183cdc1fa3d70d6abe2a4c369e748cd7ebb8 ]

When using a TX ring buffer, if an error occurs processing a control
message (e.g. invalid message), the net_device reference is not
released.

Fixes c14ac9451c348 ("sock: enable timestamping using control messages")
Signed-off-by: Douglas Caetano dos Santos <douglascs@taghos.com.br>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:07:43 +02:00
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