[PATCH v2 11/11] can: rcar_can: Convert to %pe

[Geert Uytterhoeven <geert+renesas@xxxxxxxxx>]

Replace numerical error codes by mnemotechnic error codes, to improve
the user experience in case of errors.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
v2:
  - New.
---
 drivers/net/can/rcar/rcar_can.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c
index 51bf8f7e71824ac8..5f85f4e272054789 100644
--- a/drivers/net/can/rcar/rcar_can.c
+++ b/drivers/net/can/rcar/rcar_can.c
@@ -521,20 +521,20 @@ static int rcar_can_open(struct net_device *ndev)
 	}
 	err = clk_prepare_enable(priv->can_clk);
 	if (err) {
-		netdev_err(ndev, "failed to enable CAN clock, error %d\n",
-			   err);
+		netdev_err(ndev, "failed to enable CAN clock: %pe\n",
+			   ERR_PTR(err));
 		goto out_rpm;
 	}
 	err = open_candev(ndev);
 	if (err) {
-		netdev_err(ndev, "open_candev() failed, error %d\n", err);
+		netdev_err(ndev, "open_candev() failed %pe\n", ERR_PTR(err));
 		goto out_can_clock;
 	}
 	napi_enable(&priv->napi);
 	err = request_irq(ndev->irq, rcar_can_interrupt, 0, ndev->name, ndev);
 	if (err) {
-		netdev_err(ndev, "request_irq(%d) failed, error %d\n",
-			   ndev->irq, err);
+		netdev_err(ndev, "request_irq(%d) failed %pe\n", ndev->irq,
+			   ERR_PTR(err));
 		goto out_close;
 	}
 	rcar_can_start(ndev);
@@ -786,8 +786,8 @@ static int rcar_can_probe(struct platform_device *pdev)
 	}
 	priv->can_clk = devm_clk_get(dev, clock_names[clock_select]);
 	if (IS_ERR(priv->can_clk)) {
+		dev_err(dev, "cannot get CAN clock: %pe\n", priv->can_clk);
 		err = PTR_ERR(priv->can_clk);
-		dev_err(dev, "cannot get CAN clock, error %d\n", err);
 		goto fail_clk;
 	}
 
@@ -813,7 +813,7 @@ static int rcar_can_probe(struct platform_device *pdev)
 
 	err = register_candev(ndev);
 	if (err) {
-		dev_err(dev, "register_candev() failed, error %d\n", err);
+		dev_err(dev, "register_candev() failed %pe\n", ERR_PTR(err));
 		goto fail_rpm;
 	}
 
-- 
2.43.0