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[4/8] can: rcar_can: print request_irq() error code

Message ID 1436728691-1145-5-git-send-email-mkl@pengutronix.de
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Marc Kleine-Budde July 12, 2015, 7:18 p.m. UTC 
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Also print the error code when the request_irq() call fails in rcar_can_open(),
rewording  the error message...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/rcar_can.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c
index 310a0cd20679..5e81afffc073 100644
--- a/drivers/net/can/rcar_can.c
+++ b/drivers/net/can/rcar_can.c
@@ -527,7 +527,8 @@  static int rcar_can_open(struct net_device *ndev)
 	napi_enable(&priv->napi);
 	err = request_irq(ndev->irq, rcar_can_interrupt, 0, ndev->name, ndev);
 	if (err) {
-		netdev_err(ndev, "error requesting interrupt %d\n", ndev->irq);
+		netdev_err(ndev, "request_irq(%d) failed, error %d\n",
+			   ndev->irq, err);
 		goto out_close;
 	}
 	can_led_event(ndev, CAN_LED_EVENT_OPEN);