X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fscpi-pps%2Fapi.c;h=9158933dedf5e9bc44c95780ddabe34a3f251409;hb=fd20e59caa4b2b05ddbca55f77ff8b1cf8ae0446;hp=6de714014e2ea0c800b10a02af75857ddbe1905b;hpb=dd7a72ea697a172032f5473b0ddff5e8d47222f4;p=libsigrok.git

diff --git a/src/hardware/scpi-pps/api.c b/src/hardware/scpi-pps/api.c
index 6de71401..9158933d 100644
--- a/src/hardware/scpi-pps/api.c
+++ b/src/hardware/scpi-pps/api.c
@@ -433,7 +433,6 @@ static int config_set(uint32_t key, GVariant *data,
 {
 	struct dev_context *devc;
 	double d;
-	int ret;
 
 	if (!sdi)
 		return SR_ERR_ARG;
@@ -446,66 +445,66 @@ static int config_set(uint32_t key, GVariant *data,
 	switch (key) {
 	case SR_CONF_ENABLED:
 		if (g_variant_get_boolean(data))
-			ret = scpi_cmd(sdi, devc->device->commands,
+			return scpi_cmd(sdi, devc->device->commands,
 					SCPI_CMD_SET_OUTPUT_ENABLE);
 		else
-			ret = scpi_cmd(sdi, devc->device->commands,
+			return scpi_cmd(sdi, devc->device->commands,
 					SCPI_CMD_SET_OUTPUT_DISABLE);
 		break;
 	case SR_CONF_VOLTAGE_TARGET:
 		d = g_variant_get_double(data);
-		ret = scpi_cmd(sdi, devc->device->commands,
+		return scpi_cmd(sdi, devc->device->commands,
 				SCPI_CMD_SET_VOLTAGE_TARGET, d);
 		break;
 	case SR_CONF_OUTPUT_FREQUENCY_TARGET:
 		d = g_variant_get_double(data);
-		ret = scpi_cmd(sdi, devc->device->commands,
+		return scpi_cmd(sdi, devc->device->commands,
 				SCPI_CMD_SET_FREQUENCY_TARGET, d);
 		break;
 	case SR_CONF_CURRENT_LIMIT:
 		d = g_variant_get_double(data);
-		ret = scpi_cmd(sdi, devc->device->commands,
+		return scpi_cmd(sdi, devc->device->commands,
 				SCPI_CMD_SET_CURRENT_LIMIT, d);
 		break;
 	case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 		if (g_variant_get_boolean(data))
-			ret = scpi_cmd(sdi, devc->device->commands,
+			return scpi_cmd(sdi, devc->device->commands,
 					SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE);
 		else
-			ret = scpi_cmd(sdi, devc->device->commands,
+			return scpi_cmd(sdi, devc->device->commands,
 					SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE);
 		break;
 	case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
 		d = g_variant_get_double(data);
-		ret = scpi_cmd(sdi, devc->device->commands,
+		return scpi_cmd(sdi, devc->device->commands,
 				SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD, d);
 		break;
 	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 		if (g_variant_get_boolean(data))
-			ret = scpi_cmd(sdi, devc->device->commands,
+			return scpi_cmd(sdi, devc->device->commands,
 					SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE);
 		else
-			ret = scpi_cmd(sdi, devc->device->commands,
+			return scpi_cmd(sdi, devc->device->commands,
 					SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE);
 		break;
 	case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
 		d = g_variant_get_double(data);
-		ret = scpi_cmd(sdi, devc->device->commands,
+		return scpi_cmd(sdi, devc->device->commands,
 				SCPI_CMD_SET_OVER_CURRENT_PROTECTION_THRESHOLD, d);
 		break;
 	case SR_CONF_OVER_TEMPERATURE_PROTECTION:
 		if (g_variant_get_boolean(data))
-			ret = scpi_cmd(sdi, devc->device->commands,
+			return scpi_cmd(sdi, devc->device->commands,
 					SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE);
 		else
-			ret = scpi_cmd(sdi, devc->device->commands,
+			return scpi_cmd(sdi, devc->device->commands,
 					SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE);
 		break;
 	default:
-		ret = SR_ERR_NA;
+		return SR_ERR_NA;
 	}
 
-	return ret;
+	return SR_OK;
 }
 
 static int config_list(uint32_t key, GVariant **data,
@@ -526,10 +525,12 @@ static int config_list(uint32_t key, GVariant **data,
 			return std_opts_config_list(key, data, sdi, cg,
 				ARRAY_AND_SIZE(scanopts),
 				ARRAY_AND_SIZE(drvopts),
-				(devc) ? devc->device->devopts : NULL,
-				(devc) ? devc->device->num_devopts : 0);
+				(devc && devc->device) ? devc->device->devopts : NULL,
+				(devc && devc->device) ? devc->device->num_devopts : 0);
 			break;
 		case SR_CONF_CHANNEL_CONFIG:
+			if (!devc || !devc->device)
+				return SR_ERR_ARG;
 			/* Not used. */
 			i = 0;
 			if (devc->device->features & PPS_INDEPENDENT)
@@ -558,6 +559,8 @@ static int config_list(uint32_t key, GVariant **data,
 		 * specification for use in series or parallel mode.
 		 */
 		ch = cg->channels->data;
+		if (!devc || !devc->device)
+			return SR_ERR_ARG;
 		ch_spec = &(devc->device->channels[ch->index]);
 
 		switch (key) {