net/ipv4: avoid compile error in fib_info_nh_uses_dev
net/ipv4/fib_frontend.c: In function 'fib_info_nh_uses_dev': net/ipv4/fib_frontend.c:322:6: error: unused variable 'ret' [-Werror=unused-variable] cc1: all warnings being treated as errors Fixes: 78f2756c ("net/ipv4: Move device validation to helper") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: David Ahern <dsahern@gmail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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