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net: ipa: skip SKB copy if no netdev
In ipa_endpoint_skb_copy(), a new socket buffer structure is
allocated so that some data can be copied into it. However, after
doing this, if the endpoint has a null netdev pointer, we just drop
free the socket buffer.
Instead, check endpoint->netdev pointer first, and just return early
if it's null. Also return early if the SKB allocation fails, to
avoid the deeper indentation in the normal path.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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