[PATCH] network: Prevent NULL pointer SIGSEGV in set_autoconnect()

connman_network_set_autoconnect() can be called with NULL network in
some cases when enabling autoconnect. Prevent crash with SIGSEGV by
checking also the network.

Verified and tested by Dragos Cosma ([email protected]) with
ConnMan 1.45. Appeared first in Sailfish OS on upgrade to ConnMan 1.40.
---
 src/network.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/network.c b/src/network.c
index 416a7e74..9b010971 100644
--- a/src/network.c
+++ b/src/network.c
@@ -2121,7 +2121,7 @@ uint16_t connman_network_get_frequency(struct connman_network *network)
 int connman_network_set_autoconnect(struct connman_network *network,
 				bool autoconnect)
 {
-	if (!network->driver || !network->driver->set_autoconnect)
+	if (!network || !network->driver || !network->driver->set_autoconnect)
 		return 0;
 	return network->driver->set_autoconnect(network, autoconnect);
 }
-- 
2.47.3