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, and the error value gets printed.
Signed-off-by: Cai Huoqing caihuoqing@baidu.com --- drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c b/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c index 2a602aee61c3..cb0bb3076099 100644 --- a/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c +++ b/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c @@ -456,16 +456,13 @@ static int k101_im2ba02_dsi_probe(struct mipi_dsi_device *dsi)
ret = devm_regulator_bulk_get(&dsi->dev, ARRAY_SIZE(ctx->supplies), ctx->supplies); - if (ret < 0) { - dev_err(&dsi->dev, "Couldn't get regulators\n"); - return ret; - } + if (ret < 0) + return dev_err_probe(&dsi->dev, ret, "Couldn't get regulators\n");
ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(ctx->reset)) { - dev_err(&dsi->dev, "Couldn't get our reset GPIO\n"); - return PTR_ERR(ctx->reset); - } + if (IS_ERR(ctx->reset)) + return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset), + "Couldn't get our reset GPIO\n");
drm_panel_init(&ctx->panel, &dsi->dev, &k101_im2ba02_funcs, DRM_MODE_CONNECTOR_DSI);