[PATCH] regulator: mcp16502: Convert to dev_err_probe() in mcp16502_probe()

The mcp16502_probe() currently uses dev_err() for logging errors.
However, functions like devm_regmap_init_i2c, devm_gpiod_get_optional
and devm_regulator_register can return -EPROBE_DEFER. Using dev_err()
in these situations can cause unnecessary error spam in dmesg.
As a result, convert to dev_err_probe(). It also simplifies the print
and return operations into single statement. The 'ret' variable is no
longer required and has been removed.
Originally detected by Coccinelle with this warning "Consider using
%pe to print PTR_ERR()"
Compile-tested only.

Signed-off-by: Ninad Naik <[email protected]>
---
 drivers/regulator/mcp16502.c | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/drivers/regulator/mcp16502.c b/drivers/regulator/mcp16502.c
index b34ae0bbba6f..fea0f6a2f21b 100644
--- a/drivers/regulator/mcp16502.c
+++ b/drivers/regulator/mcp16502.c
@@ -508,7 +508,7 @@ static int mcp16502_probe(struct i2c_client *client)
 	struct device *dev;
 	struct mcp16502 *mcp;
 	struct regmap *rmap;
-	int i, ret;
+	int i;
 
 	dev = &client->dev;
 	config.dev = dev;
@@ -518,30 +518,23 @@ static int mcp16502_probe(struct i2c_client *client)
 		return -ENOMEM;
 
 	rmap = devm_regmap_init_i2c(client, &mcp16502_regmap_config);
-	if (IS_ERR(rmap)) {
-		ret = PTR_ERR(rmap);
-		dev_err(dev, "regmap init failed: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(rmap))
+		return dev_err_probe(dev, PTR_ERR(rmap), "regmap init failed\n");
 
 	i2c_set_clientdata(client, mcp);
 	config.regmap = rmap;
 	config.driver_data = mcp;
 
 	mcp->lpm = devm_gpiod_get_optional(dev, "lpm", GPIOD_OUT_LOW);
-	if (IS_ERR(mcp->lpm)) {
-		dev_err(dev, "failed to get lpm pin: %ld\n", PTR_ERR(mcp->lpm));
-		return PTR_ERR(mcp->lpm);
-	}
+	if (IS_ERR(mcp->lpm))
+		return dev_err_probe(dev, PTR_ERR(mcp->lpm), "failed to get lpm pin\n");
 
 	for (i = 0; i < NUM_REGULATORS; i++) {
 		rdev = devm_regulator_register(dev, &mcp16502_desc[i], &config);
-		if (IS_ERR(rdev)) {
-			dev_err(dev,
-				"failed to register %s regulator %ld\n",
-				mcp16502_desc[i].name, PTR_ERR(rdev));
-			return PTR_ERR(rdev);
-		}
+		if (IS_ERR(rdev))
+			return dev_err_probe(dev, PTR_ERR(rdev),
+					     "failed to register %s regulator\n",
+					     mcp16502_desc[i].name);
 	}
 
 	mcp16502_gpio_set_mode(mcp, MCP16502_OPMODE_ACTIVE);
-- 
2.55.0