platform/chrome: cros_ec_debugfs: Use cros_ec_cmd_xfer_status helper

This patch makes use of cros_ec_cmd_xfer_status() instead of
cros_ec_cmd_xfer() so we can remove some redundant code.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/platform/chrome/cros_ec_debugfs.c b/drivers/platform/chrome/cros_ec_debugfs.c
index a712508..0bd1637 100644 (file)
--- a/drivers/platform/chrome/cros_ec_debugfs.c
+++ b/drivers/platform/chrome/cros_ec_debugfs.c
@@ -72,15 +72,9 @@ static void cros_ec_console_log_work(struct work_struct *__work)
        int buf_space;
        int ret;
 
-       ret = cros_ec_cmd_xfer(ec->ec_dev, &snapshot_msg);
-       if (ret < 0) {
-               dev_err(ec->dev, "EC communication failed\n");
-               goto resched;
-       }
-       if (snapshot_msg.result != EC_RES_SUCCESS) {
-               dev_err(ec->dev, "EC failed to snapshot the console log\n");
+       ret = cros_ec_cmd_xfer_status(ec->ec_dev, &snapshot_msg);
+       if (ret < 0)
                goto resched;
-       }
 
        /* Loop until we have read everything, or there's an error. */
        mutex_lock(&debug_info->log_mutex);
@@ -95,16 +89,10 @@ static void cros_ec_console_log_work(struct work_struct *__work)
 
                memset(read_params, '\0', sizeof(*read_params));
                read_params->subcmd = CONSOLE_READ_RECENT;
-               ret = cros_ec_cmd_xfer(ec->ec_dev, debug_info->read_msg);
-               if (ret < 0) {
-                       dev_err(ec->dev, "EC communication failed\n");
-                       break;
-               }
-               if (debug_info->read_msg->result != EC_RES_SUCCESS) {
-                       dev_err(ec->dev,
-                               "EC failed to read the console log\n");
+               ret = cros_ec_cmd_xfer_status(ec->ec_dev,
+                                             debug_info->read_msg);
+               if (ret < 0)
                        break;
-               }
 
                /* If the buffer is empty, we're done here. */
                if (ret == 0 || ec_buffer[0] == '\0')
@@ -290,9 +278,8 @@ static int ec_read_version_supported(struct cros_ec_dev *ec)
        params->cmd = EC_CMD_CONSOLE_READ;
        response = (struct ec_response_get_cmd_versions *)msg->data;
 
-       ret = cros_ec_cmd_xfer(ec->ec_dev, msg) >= 0 &&
-               msg->result == EC_RES_SUCCESS &&
-               (response->version_mask & EC_VER_MASK(1));
+       ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg) >= 0 &&
+             response->version_mask & EC_VER_MASK(1);
 
        kfree(msg);
 
@@ -372,9 +359,8 @@ static int cros_ec_create_panicinfo(struct cros_ec_debugfs *debug_info)
        msg->command = EC_CMD_GET_PANIC_INFO;
        msg->insize = insize;
 
-       ret = cros_ec_cmd_xfer(ec_dev, msg);
+       ret = cros_ec_cmd_xfer_status(ec_dev, msg);
        if (ret < 0) {
-               dev_warn(debug_info->ec->dev, "Cannot read panicinfo.\n");
                ret = 0;
                goto free;
        }