tree cf2cd089af1904ccf0f98300b73beb6612ba4845
parent 7f9290f72168ad4179bfbf03b9e26d9c75bfc446
author Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1558343249 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1558457340 +0200

fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")

When commit e9919a24d302 ("fib_rules: return 0 directly if an exactly
same rule exists when NLM_F_EXCL not supplied") was backported to 4.9.y,
it changed the logic a bit as err should have been reset before exiting
the test, like it happens in the original logic.

If this is not set, errors happen :(

Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Reported-by: David Ahern <dsahern@gmail.com>
Reported-by: Florian Westphal <fw@strlen.de>
Cc: Hangbin Liu <liuhangbin@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>