X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=hardware%2Fopenbench-logic-sniffer%2Fols.c;h=e3620485315cb99e6bdfe21e5b611920f88185da;hb=697785d1aedc0bf385ea21074d83d61b11d8ce29;hp=d2d49768eb0e93397862a68c1d290d10082918e1;hpb=1352eeddd4d164b58f2233ae109432b73faab539;p=libsigrok.git

diff --git a/hardware/openbench-logic-sniffer/ols.c b/hardware/openbench-logic-sniffer/ols.c
index d2d49768..e3620485 100644
--- a/hardware/openbench-logic-sniffer/ols.c
+++ b/hardware/openbench-logic-sniffer/ols.c
@@ -458,18 +458,23 @@ static int hw_opendev(int device_index)
 	return SR_OK;
 }
 
-static void hw_closedev(int device_index)
+static int hw_closedev(int device_index)
 {
 	struct sr_device_instance *sdi;
 
-	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
-		return;
+	if (!(sdi = sr_get_device_instance(device_instances, device_index))) {
+		sr_err("ols: %s: sdi was NULL", __func__);
+		return SR_ERR; /* TODO: SR_ERR_ARG? */
+	}
 
+	/* TODO */
 	if (sdi->serial->fd != -1) {
 		serial_close(sdi->serial->fd);
 		sdi->serial->fd = -1;
 		sdi->status = SR_ST_INACTIVE;
 	}
+
+	return SR_OK;
 }
 
 static void hw_cleanup(void)