When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed.
Signed-off-by: Cai Huoqing caihuoqing@baidu.com --- .../gpu/drm/panel/panel-samsung-s6e63j0x03.c | 21 +++++++------------ 1 file changed, 8 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c index ccc8ed6fe3ae..e38262b67ff7 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c @@ -452,27 +452,22 @@ static int s6e63j0x03_probe(struct mipi_dsi_device *dsi) ctx->supplies[1].supply = "vci"; ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), ctx->supplies); - if (ret < 0) { - dev_err(dev, "failed to get regulators: %d\n", ret); - return ret; - } + if (ret < 0) + return dev_err_probe(dev, ret, "failed to get regulators\n");
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(ctx->reset_gpio)) { - dev_err(dev, "cannot get reset-gpio: %ld\n", - PTR_ERR(ctx->reset_gpio)); - return PTR_ERR(ctx->reset_gpio); - } + if (IS_ERR(ctx->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), + "cannot get reset-gpio\n");
drm_panel_init(&ctx->panel, dev, &s6e63j0x03_funcs, DRM_MODE_CONNECTOR_DSI);
ctx->bl_dev = backlight_device_register("s6e63j0x03", dev, ctx, &s6e63j0x03_bl_ops, NULL); - if (IS_ERR(ctx->bl_dev)) { - dev_err(dev, "failed to register backlight device\n"); - return PTR_ERR(ctx->bl_dev); - } + if (IS_ERR(ctx->bl_dev)) + return dev_err_probe(dev, PTR_ERR(ctx->bl_dev), + "failed to register backlight device\n");
ctx->bl_dev->props.max_brightness = MAX_BRIGHTNESS; ctx->bl_dev->props.brightness = DEFAULT_BRIGHTNESS;