1 files changed, 3 insertions, 0 deletions
diff --git a/src/alsa.c b/src/alsa.c
index a1dea98..15c34ed 100644
--- a/src/alsa.c
+++ b/src/alsa.c
@@ -180,6 +180,9 @@ int driver_change_props(ca_context *c, ca_proplist *changed, ca_proplist *merged
 }
 
 int driver_cache(ca_context *c, ca_proplist *proplist) {
+    ca_return_val_if_fail(c, CA_ERROR_INVALID);
+    ca_return_val_if_fail(proplist, CA_ERROR_INVALID);
+
     return CA_ERROR_NOTSUPPORTED;
 }