libnetlink: Process further iovs on no error

When no error is reported in the first iov, do not prematurely return,
but process further iovs. This fixes batch processing.

Fixes: c60389e4f9ea ("libnetlink: fix leak and using unused memory on error")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/lib/libnetlink.c b/lib/libnetlink.c
index c0b80ed6fdfb839a3e9560de5b52ac1b048f0ab9..954571097ea8dd90a1ec3461da84865a4655f1be 100644 (file)
--- a/lib/libnetlink.c
+++ b/lib/libnetlink.c
@@ -763,6 +763,7 @@ static int __rtnl_talk_iov(struct rtnl_handle *rtnl, struct iovec *iov,
        msg.msg_iovlen = 1;
        i = 0;
        while (1) {
+next:
                status = rtnl_recvmsg(rtnl->fd, &msg, &buf);
                ++i;
 
@@ -826,6 +827,8 @@ static int __rtnl_talk_iov(struct rtnl_handle *rtnl, struct iovec *iov,
                                else
                                        free(buf);
 
+                               if (i < iovlen)
+                                       goto next;
                                return error ? -i : 0;
                        }