diff mbox series

can: rcar_canfd: Use dev_err_probe() to simplify code and better handle -EPROBE_DEFER

Message ID f5bf0b8f757bd3bc9b391094ece3548cc2f96456.1659858686.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State Awaiting Upstream
Delegated to: Netdev Maintainers
Headers show
Series can: rcar_canfd: Use dev_err_probe() to simplify code and better handle -EPROBE_DEFER | expand

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Commit Message

Christophe JAILLET Aug. 7, 2022, 7:52 a.m. UTC
devm_clk_get() can return -EPROBE_DEFER, so use dev_err_probe() instead of
dev_err() in order to be less verbose in the log.

This also saves a few LoC.

While at it, turn a "goto fail_dev;" at the beginning of the function into
a direct return in order to avoid mixing goto and return, which looks
spurious.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/net/can/rcar/rcar_canfd.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

Comments

Marc Kleine-Budde Aug. 8, 2022, 7:57 a.m. UTC | #1
On 07.08.2022 09:52:11, Christophe JAILLET wrote:
> devm_clk_get() can return -EPROBE_DEFER, so use dev_err_probe() instead of
> dev_err() in order to be less verbose in the log.
> 
> This also saves a few LoC.
> 
> While at it, turn a "goto fail_dev;" at the beginning of the function into
> a direct return in order to avoid mixing goto and return, which looks
> spurious.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Added to can-next/testing.

Thanks,
Marc
diff mbox series

Patch

diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index 27085b796e75..567620d215f8 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -1880,10 +1880,9 @@  static int rcar_canfd_probe(struct platform_device *pdev)
 
 	/* Global controller context */
 	gpriv = devm_kzalloc(&pdev->dev, sizeof(*gpriv), GFP_KERNEL);
-	if (!gpriv) {
-		err = -ENOMEM;
-		goto fail_dev;
-	}
+	if (!gpriv)
+		return -ENOMEM;
+
 	gpriv->pdev = pdev;
 	gpriv->channels_mask = channels_mask;
 	gpriv->fdmode = fdmode;
@@ -1904,12 +1903,9 @@  static int rcar_canfd_probe(struct platform_device *pdev)
 
 	/* Peripheral clock */
 	gpriv->clkp = devm_clk_get(&pdev->dev, "fck");
-	if (IS_ERR(gpriv->clkp)) {
-		err = PTR_ERR(gpriv->clkp);
-		dev_err(&pdev->dev, "cannot get peripheral clock, error %d\n",
-			err);
-		goto fail_dev;
-	}
+	if (IS_ERR(gpriv->clkp))
+		return dev_err_probe(&pdev->dev, PTR_ERR(gpriv->clkp),
+				     "cannot get peripheral clock\n");
 
 	/* fCAN clock: Pick External clock. If not available fallback to
 	 * CANFD clock
@@ -1917,12 +1913,10 @@  static int rcar_canfd_probe(struct platform_device *pdev)
 	gpriv->can_clk = devm_clk_get(&pdev->dev, "can_clk");
 	if (IS_ERR(gpriv->can_clk) || (clk_get_rate(gpriv->can_clk) == 0)) {
 		gpriv->can_clk = devm_clk_get(&pdev->dev, "canfd");
-		if (IS_ERR(gpriv->can_clk)) {
-			err = PTR_ERR(gpriv->can_clk);
-			dev_err(&pdev->dev,
-				"cannot get canfd clock, error %d\n", err);
-			goto fail_dev;
-		}
+		if (IS_ERR(gpriv->can_clk))
+			return dev_err_probe(&pdev->dev, PTR_ERR(gpriv->can_clk),
+					     "cannot get canfd clock\n");
+
 		gpriv->fcan = RCANFD_CANFDCLK;
 
 	} else {