[PATCH 5.9 04/49] ipv4: fix error return code in rtm_to_fib_config()

[Greg Kroah-Hartman]

From: Zhang Changzhong <zhangchangzh...@huawei.com>

[ Upstream commit b410f04eb5b482b5efc4eee90de81ad35d3d923b ]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: d15662682db2 ("ipv4: Allow ipv6 gateway with ipv4 routes")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzh...@huawei.com>
Reviewed-by: David Ahern <dsah...@kernel.org>
Link: 
https://lore.kernel.org/r/1607071695-33740-1-git-send-email-zhangchangzh...@huawei.com
Signed-off-by: Jakub Kicinski <k...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 net/ipv4/fib_frontend.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -825,7 +825,7 @@ static int rtm_to_fib_config(struct net
        if (has_gw && has_via) {
                NL_SET_ERR_MSG(extack,
                               "Nexthop configuration can not contain both 
GATEWAY and VIA");
-               goto errout;
+               return -EINVAL;
        }
 
        return 0;