linux-kernel - [PATCH v1 4/4] can: hi311x: Convert to use dev_err

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Message-Id: <20211206162323.29281-4-andriy.shevchenko@linux.intel.com>
Date:   Mon,  6 Dec 2021 18:23:23 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH v1 4/4] can: hi311x: Convert to use dev_err_probe()

When deferred the reason is saved for further debugging. Besides that,
it's fine to call dev_err_probe() in ->probe() when error code is known.
Convert the driver to use dev_err_probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/net/can/spi/hi311x.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/net/can/spi/hi311x.c b/drivers/net/can/spi/hi311x.c
index 78044ec24575..a17641d36468 100644
--- a/drivers/net/can/spi/hi311x.c
+++ b/drivers/net/can/spi/hi311x.c
@@ -837,10 +837,8 @@ static int hi3110_can_probe(struct spi_device *spi)
 	int ret;
 
 	clk = devm_clk_get_optional(&spi->dev, NULL);
-	if (IS_ERR(clk)) {
-		dev_err(&spi->dev, "no CAN clock source defined\n");
-		return PTR_ERR(clk);
-	}
+	if (IS_ERR(clk))
+		return dev_err_probe(dev, PTR_ERR(clk), "no CAN clock source defined\n");
 
 	if (clk) {
 		freq = clk_get_rate(clk);
@@ -925,9 +923,7 @@ static int hi3110_can_probe(struct spi_device *spi)
 
 	ret = hi3110_hw_probe(spi);
 	if (ret) {
-		if (ret == -ENODEV)
-			dev_err(&spi->dev, "Cannot initialize %x. Wrong wiring?\n",
-				priv->model);
+		dev_err_probe(dev, ret, "Cannot initialize %x. Wrong wiring?\n", priv->model);
 		goto error_probe;
 	}
 	hi3110_hw_sleep(spi);
@@ -950,8 +946,7 @@ static int hi3110_can_probe(struct spi_device *spi)
  out_free:
 	free_candev(net);
 
-	dev_err(&spi->dev, "Probe failed, err=%d\n", -ret);
-	return ret;
+	return dev_err_probe(dev, ret, "Probe failed\n");
 }
 
 static int hi3110_can_remove(struct spi_device *spi)
-- 
2.33.0