clear_helper(): Use a cast to shorten all implementations.

[libsigrok.git] / src / hardware / lecroy-xstream / api.c

diff --git a/src/hardware/lecroy-xstream/api.c b/src/hardware/lecroy-xstream/api.c
index 1727ab6d4590e7242942e310690de70963f347f5..34b50b7ae33d91e6c325d05c79f81608b1befb9d 100644 (file)
--- a/src/hardware/lecroy-xstream/api.c
+++ b/src/hardware/lecroy-xstream/api.c
@@ -104,8 +104,7 @@ static struct sr_dev_inst *probe_serial_device(struct sr_scpi_dev_inst *scpi)
 
 fail:
        sr_scpi_hw_info_free(hw_info);
-       if (sdi)
-               sr_dev_inst_free(sdi);
+       sr_dev_inst_free(sdi);
        g_free(devc);
 
        return NULL;
@@ -116,47 +115,31 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
        return sr_scpi_scan(di->context, options, probe_serial_device);
 }
 
-static void clear_helper(void *priv)
+static void clear_helper(struct dev_context *devc)
 {
-       struct dev_context *devc;
-
-       devc = priv;
-
        lecroy_xstream_state_free(devc->model_state);
-
        g_free(devc->analog_groups);
-
-       g_free(devc);
 }
 
 static int dev_clear(const struct sr_dev_driver *di)
 {
-       return std_dev_clear(di, clear_helper);
+       return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
 }
 
 static int dev_open(struct sr_dev_inst *sdi)
 {
-       if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
+       if (sr_scpi_open(sdi->conn) != SR_OK)
                return SR_ERR;
 
        if (lecroy_xstream_state_get(sdi) != SR_OK)
                return SR_ERR;
 
-       sdi->status = SR_ST_ACTIVE;
-
        return SR_OK;
 }
 
 static int dev_close(struct sr_dev_inst *sdi)
 {
-       if (sdi->status == SR_ST_INACTIVE)
-               return SR_OK;
-
-       sr_scpi_close(sdi->conn);
-
-       sdi->status = SR_ST_INACTIVE;
-
-       return SR_OK;
+       return sr_scpi_close(sdi->conn);
 }
 
 static int config_get(uint32_t key, GVariant **data,
@@ -554,9 +537,6 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
        int ret;
        struct sr_scpi_dev_inst *scpi;
 
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
        devc = sdi->priv;
        scpi = sdi->conn;
        /* Preset empty results. */
@@ -617,9 +597,6 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 
        std_session_send_df_end(sdi);
 
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
        devc = sdi->priv;
 
        devc->num_frames = 0;