motech-lps-30x: fix several compiler warnings

[libsigrok.git] / src / hardware / motech-lps-30x / api.c

diff --git a/src/hardware/motech-lps-30x/api.c b/src/hardware/motech-lps-30x/api.c
index 0c5817897499d3de0121d5260ac69e06d6e0cf4f..af3ee4f0aecbe504943b9aafb215c6ddc3395769 100644 (file)
--- a/src/hardware/motech-lps-30x/api.c
+++ b/src/hardware/motech-lps-30x/api.c
@@ -650,6 +650,8 @@ static int config_list(uint32_t key, GVariant **data,
                case SR_CONF_DEVICE_OPTIONS:
                        return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
                case SR_CONF_CHANNEL_CONFIG:
+                       if (!devc || !devc->model)
+                               return SR_ERR_ARG;
                        if (devc->model->modelid <= LPS_303) {
                                /* The 1-channel models. */
                                *data = g_variant_new_strv(channel_modes, 1);
@@ -675,9 +677,13 @@ static int config_list(uint32_t key, GVariant **data,
                        *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_ch3));
                break;
        case SR_CONF_VOLTAGE_TARGET:
+               if (!devc || !devc->model)
+                       return SR_ERR_ARG;
                *data = std_gvar_min_max_step_array(devc->model->channels[ch_idx].voltage);
                break;
        case SR_CONF_CURRENT_LIMIT:
+               if (!devc || !devc->model)
+                       return SR_ERR_ARG;
                *data = std_gvar_min_max_step_array(devc->model->channels[ch_idx].current);
                break;
        default: