volume: avoid NULL dereference in onval() on sndio device switch

diff --git a/components/volume.c b/components/volume.c
index 6cec556507360dbdfc3b5a2ca8b556396b903ee6..5a2bfb7d13c79b09ff0b2e14423e469bc63d5f96 100644 (file)
--- a/components/volume.c
+++ b/components/volume.c
@@ -89,6 +89,8 @@
                        if (c->addr == addr)
                                break;
                }
+               if (c == NULL)
+                       return;
                c->val = val;
        }