X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fmaynuo-m97%2Fapi.c;h=54444d623c6d1484bfbe31f3da3d99d512a91c33;hb=a0ade2f933d62fee3dea55475c7a9c69883b8b25;hp=ebc0ddab85a96bd81ce7f1e416215ead5dd878da;hpb=758906aa711c2936e7e9adcb449f70905087a5d9;p=libsigrok.git

diff --git a/src/hardware/maynuo-m97/api.c b/src/hardware/maynuo-m97/api.c
index ebc0ddab..54444d62 100644
--- a/src/hardware/maynuo-m97/api.c
+++ b/src/hardware/maynuo-m97/api.c
@@ -140,7 +140,7 @@ static struct sr_dev_inst *probe_device(struct sr_modbus_dev_inst *modbus)
 	sdi->status = SR_ST_INACTIVE;
 	sdi->vendor = g_strdup("Maynuo");
 	sdi->model = g_strdup(model->name);
-	sdi->version = g_strdup_printf("v%d.%d", version/10, version%10);
+	sdi->version = g_strdup_printf("v%d.%d", version / 10, version % 10);
 	sdi->conn = modbus;
 	sdi->driver = &maynuo_m97_driver_info;
 	sdi->inst_type = SR_INST_MODBUS;
@@ -363,9 +363,13 @@ static int config_list(uint32_t key, GVariant **data,
 			*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
 			break;
 		case SR_CONF_VOLTAGE_TARGET:
+			if (!devc || !devc->model)
+				return SR_ERR_ARG;
 			*data = std_gvar_min_max_step(0.0, devc->model->max_voltage, 0.001);
 			break;
 		case SR_CONF_CURRENT_LIMIT:
+			if (!devc || !devc->model)
+				return SR_ERR_ARG;
 			*data = std_gvar_min_max_step(0.0, devc->model->max_current, 0.0001);
 			break;
 		default: