diff --git a/src/input/csv.c b/src/input/csv.c
index cc721baf..5b5a8f31 100644
--- a/src/input/csv.c
+++ b/src/input/csv.c
@@ -651,6 +651,7 @@ static int process_buffer(struct sr_input *in)
 	else
 		max_columns = 1;
 
+	ret = SR_OK;
 	lines = g_strsplit_set(in->buf->str, "\r\n", 0);
 	for (l = 0; lines[l]; l++) {
 		inc->line_number++;
diff --git a/src/input/wav.c b/src/input/wav.c
index 3bdd12f0..1c0d4fd1 100644
--- a/src/input/wav.c
+++ b/src/input/wav.c
@@ -338,7 +338,7 @@ static int receive(struct sr_input *in, GString *buf)
 
 	ret = process_buffer(in);
 
-	return SR_OK;
+	return ret;
 }
 
 static int end(struct sr_input *in)