linux-kernel - [PATCH v5 02/13] media: i2c: imx214: Simplify with dev_err

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Message-Id: <20241217-imx214-v5-2-387f52adef4d@apitzsch.eu>
Date: Tue, 17 Dec 2024 22:39:14 +0100
From: André Apitzsch via B4 Relay <devnull+git.apitzsch.eu@...nel.org>
To: Ricardo Ribalda <ribalda@...nel.org>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, 
 linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Dave Stevenson <dave.stevenson@...pberrypi.com>, 
 Vincent Knecht <vincent.knecht@...loo.org>, 
 André Apitzsch <git@...tzsch.eu>, 
 Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v5 02/13] media: i2c: imx214: Simplify with dev_err_probe()

From: André Apitzsch <git@...tzsch.eu>

Error handling in probe() can be a bit simpler with dev_err_probe().

Acked-by: Ricardo Ribalda <ribalda@...omium.org>
Signed-off-by: André Apitzsch <git@...tzsch.eu>
---
 drivers/media/i2c/imx214.c | 54 +++++++++++++++++++++-------------------------
 1 file changed, 24 insertions(+), 30 deletions(-)

diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index 646a25d9d3767c4c537fba47a5972269208150ee..13a442865a17b4148aaaeea0a06e38aaae8bb29a 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -933,14 +933,12 @@ static int imx214_parse_fwnode(struct device *dev)
 	int ret;
 
 	endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
-	if (!endpoint) {
-		dev_err(dev, "endpoint node not found\n");
-		return -EINVAL;
-	}
+	if (!endpoint)
+		return dev_err_probe(dev, -EINVAL, "endpoint node not found\n");
 
 	ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &bus_cfg);
 	if (ret) {
-		dev_err(dev, "parsing endpoint node failed\n");
+		dev_err_probe(dev, ret, "parsing endpoint node failed\n");
 		goto done;
 	}
 
@@ -949,8 +947,9 @@ static int imx214_parse_fwnode(struct device *dev)
 			break;
 
 	if (i == bus_cfg.nr_of_link_frequencies) {
-		dev_err(dev, "link-frequencies %d not supported, Please review your DT\n",
-			IMX214_DEFAULT_LINK_FREQ);
+		dev_err_probe(dev, -EINVAL,
+			      "link-frequencies %d not supported, Please review your DT\n",
+			      IMX214_DEFAULT_LINK_FREQ);
 		ret = -EINVAL;
 		goto done;
 	}
@@ -978,34 +977,28 @@ static int imx214_probe(struct i2c_client *client)
 	imx214->dev = dev;
 
 	imx214->xclk = devm_clk_get(dev, NULL);
-	if (IS_ERR(imx214->xclk)) {
-		dev_err(dev, "could not get xclk");
-		return PTR_ERR(imx214->xclk);
-	}
+	if (IS_ERR(imx214->xclk))
+		return dev_err_probe(dev, PTR_ERR(imx214->xclk),
+				     "failed to get xclk\n");
 
 	ret = clk_set_rate(imx214->xclk, IMX214_DEFAULT_CLK_FREQ);
-	if (ret) {
-		dev_err(dev, "could not set xclk frequency\n");
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret,
+				     "failed to set xclk frequency\n");
 
 	ret = imx214_get_regulators(dev, imx214);
-	if (ret < 0) {
-		dev_err(dev, "cannot get regulators\n");
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "failed to get regulators\n");
 
 	imx214->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
-	if (IS_ERR(imx214->enable_gpio)) {
-		dev_err(dev, "cannot get enable gpio\n");
-		return PTR_ERR(imx214->enable_gpio);
-	}
+	if (IS_ERR(imx214->enable_gpio))
+		return dev_err_probe(dev, PTR_ERR(imx214->enable_gpio),
+				     "failed to get enable gpio\n");
 
 	imx214->regmap = devm_regmap_init_i2c(client, &sensor_regmap_config);
-	if (IS_ERR(imx214->regmap)) {
-		dev_err(dev, "regmap init failed\n");
-		return PTR_ERR(imx214->regmap);
-	}
+	if (IS_ERR(imx214->regmap))
+		return dev_err_probe(dev, PTR_ERR(imx214->regmap),
+				     "regmap init failed\n");
 
 	v4l2_i2c_subdev_init(&imx214->sd, client, &imx214_subdev_ops);
 	imx214->sd.internal_ops = &imx214_internal_ops;
@@ -1031,20 +1024,21 @@ static int imx214_probe(struct i2c_client *client)
 
 	ret = media_entity_pads_init(&imx214->sd.entity, 1, &imx214->pad);
 	if (ret < 0) {
-		dev_err(dev, "could not register media entity\n");
+		dev_err_probe(dev, ret, "failed to init entity pads\n");
 		goto free_ctrl;
 	}
 
 	imx214->sd.state_lock = imx214->ctrls.lock;
 	ret = v4l2_subdev_init_finalize(&imx214->sd);
 	if (ret < 0) {
-		dev_err(dev, "subdev init error: %d\n", ret);
+		dev_err_probe(dev, ret, "subdev init error\n");
 		goto free_entity;
 	}
 
 	ret = v4l2_async_register_subdev_sensor(&imx214->sd);
 	if (ret < 0) {
-		dev_err(dev, "could not register v4l2 device\n");
+		dev_err_probe(dev, ret,
+			      "failed to register sensor sub-device\n");
 		goto error_subdev_cleanup;
 	}
 

-- 
2.47.1