flowtop: Fix flows disappearing

While removing flow which is pointed by 'head' then head is set to
NULL and all the list disappears, so fixed by set removing flow next
entry to list 'head'.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/flowtop.c b/flowtop.c
index e7a1bfa..9d1991a 100644
--- a/flowtop.c
+++ b/flowtop.c
@@ -368,8 +368,10 @@ static void flow_list_destroy_entry(struct flow_list *fl,
 
 			flow_entry_xfree(n1);
 		} else {
+			struct flow_entry *next = fl->head->next;
+
 			flow_entry_xfree(fl->head);
-			fl->head = NULL;
+			fl->head = next;
 		}
 	}
 }