fib_rules: fix error in backport of e9919a24d302 ("fib_rules: return 0...")
commit691306ebd18f945e44b4552a4bfcca3475e5d957
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 20 May 2019 09:07:29 +0000 (20 11:07 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 21 May 2019 16:50:20 +0000 (21 18:50 +0200)
treef1ac4db5a6bf39ca4aee983887c918154beea143
parent654a509d8e93755c64c28aa4d257a998e897e6b1
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>
net/core/fib_rules.c