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It is spurious to allocate a bitmap without initializing it.
So, better safe than sorry, initialize it to 0 at least to have some known
values.
While at it, switch to the devm_bitmap_ API which is less verbose.
Fixes: 4b41d34367 ("net: ethernet: ti: cpsw: allow untagged traffic on host port")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>