sim: handling crash in error scenario for SIM PIN query

In case of error in sim_pin_query_cb function. pin_type is set
to -1. This is causing segmentation fault in function
sim_passwd_name due to invalid index pin_type = -1. Fixing this
issue by handling error case before calling sim_passwd_name
function.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/sim.c b/src/sim.c
index 535ccbca..33e1245f 100644
--- a/src/sim.c
+++ b/src/sim.c
@@ -3201,7 +3201,7 @@ static void sim_pin_query_cb(const struct ofono_error *error,
 	DBusConnection *conn = ofono_dbus_get_connection();
 	const char *path = __ofono_atom_get_path(sim->atom);
 	struct cached_pin *cpins = pin_cache_lookup(sim->iccid);
-	const char *pin_name = sim_passwd_name(pin_type);
+	const char *pin_name;
 	char **locked_pins;
 	gboolean lock_changed;
 
@@ -3212,6 +3212,8 @@ static void sim_pin_query_cb(const struct ofono_error *error,
 		return;
 	}
 
+	pin_name = sim_passwd_name(pin_type);
+
 	if (sim->pin_type != pin_type) {
 		sim->pin_type = pin_type;