X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Foutput%2Fanalog.c;h=d665b8ec2edaa81182adc50387b0538d6dc70dfe;hb=588295b8b9cd9b3c7e67ccd3bfd74e05c513c0fb;hp=5c624e050033729273b0972fb4c6c580cecd80c8;hpb=e86cc12b66a4d1e24224cd5a766c4426d17fa56a;p=libsigrok.git

diff --git a/src/output/analog.c b/src/output/analog.c
index 5c624e05..d665b8ec 100644
--- a/src/output/analog.c
+++ b/src/output/analog.c
@@ -195,8 +195,14 @@ static int cleanup(struct sr_output *o)
 	ctx = o->priv;
 
 	g_ptr_array_free(ctx->channellist, 1);
-	g_variant_unref(options[0].def);
-	g_slist_free_full(options[0].values, (GDestroyNotify)g_variant_unref);
+	if (options[0].def) {
+		g_variant_unref(options[0].def);
+		options[0].def = NULL;
+	}
+	if (options[0].values) {
+		g_slist_free_full(options[0].values, (GDestroyNotify)g_variant_unref);
+		options[0].values = NULL;
+	}
 	g_free(ctx->fdata);
 	g_free(ctx);
 	o->priv = NULL;