devlink: fix memory leak in ifname_map_rtnl_init()

When the return value of rtnl_talk() is greater than
or equal to 0, 'answer' will be allocated.
The 'answer' should be free after using,
otherwise it will cause memory leak.

Signed-off-by: Minhong He <heminhong@kylinos.cn>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Minhong He
2024-11-25 11:24:54 +08:00
committed by Stephen Hemminger
parent 0325d98f98
commit dc283e7b79

View File

@@ -846,7 +846,7 @@ static int ifname_map_rtnl_init(struct dl *dl, const char *ifname)
struct rtattr *tb[IFLA_MAX + 1];
struct rtnl_handle rth;
struct ifinfomsg *ifi;
struct nlmsghdr *n;
struct nlmsghdr *n = NULL;
int len;
int err;
@@ -887,6 +887,7 @@ static int ifname_map_rtnl_init(struct dl *dl, const char *ifname)
err = ifname_map_rtnl_port_parse(dl, ifname, tb[IFLA_DEVLINK_PORT]);
out:
free(n);
rtnl_close(&rth);
return err;
}