net/mlx4_core: fix handling return value of mlx4_slave_convert_port
The function can return negative values, so its result should be assigned to signed variable. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Fixes: fc48866f7 ('net/mlx4: Adapt code for N-Port VF') Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com> Acked-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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