X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fserial-dmm%2Fapi.c;h=f59702cc3648ba4b108c01651775dada164a9e70;hb=e73ffd4238c6d1be58d3fcdcf7f100200f033856;hp=8136f2979c8e44345414396590eedd7e670fdf7d;hpb=efdecf4c0553ce00ea2a6365212f5fe305496fed;p=libsigrok.git

diff --git a/hardware/serial-dmm/api.c b/hardware/serial-dmm/api.c
index 8136f297..f59702cc 100644
--- a/hardware/serial-dmm/api.c
+++ b/hardware/serial-dmm/api.c
@@ -365,7 +365,7 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
 	struct dev_context *devc;
 
 	if (sdi->status != SR_ST_ACTIVE)
-		return SR_ERR;
+		return SR_ERR_DEV_CLOSED;
 
 	if (!(devc = sdi->priv)) {
 		sr_err("sdi->priv was NULL.");
@@ -417,6 +417,9 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 	struct dev_context *devc;
 	struct sr_serial_dev_inst *serial;
 
+	if (sdi->status != SR_ST_ACTIVE)
+		return SR_ERR_DEV_CLOSED;
+
 	if (!(devc = sdi->priv)) {
 		sr_err("sdi->priv was NULL.");
 		return SR_ERR_BUG;