From 0096836af0b79076f8aad496a162300ef18ec57c Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Mon, 3 Oct 2022 10:49:47 +0200
Subject: [PATCH] filter-chain: guard against NULL convolver

The convolver can be NULL when the IR has 0 length.
---
 src/modules/module-filter-chain/convolver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/modules/module-filter-chain/convolver.c b/src/modules/module-filter-chain/convolver.c
index dcf54d033..fff4fbe17 100644
--- a/src/modules/module-filter-chain/convolver.c
+++ b/src/modules/module-filter-chain/convolver.c
@@ -251,7 +251,7 @@ static int convolver1_run(struct convolver1 *conv, const float *input, float *ou
 {
 	int i, processed = 0;
 
-	if (conv->segCount == 0) {
+	if (conv == NULL || conv->segCount == 0) {
 		fft_clear(output, len);
 		return len;
 	}