net: only delete CConnman if it's been created

In the case of (for example) an already-running bitcoind, the shutdown sequence
begins before CConnman has been created, leading to a null-pointer dereference
when g_connman->Stop() is called.

Instead, Just let the CConnman dtor take care of stopping.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/net.cpp b/src/net.cpp
index b39ef9f54a..30513a3b9a 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -2205,6 +2205,7 @@ void CConnman::DeleteNode(CNode* pnode)
 
 CConnman::~CConnman()
 {
+    Stop();
 }
 
 size_t CConnman::GetAddressCount() const