diff options
| author | Yan Zhen <yanzhen@vivo.com> | 2024-08-30 19:06:51 +0800 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2024-08-30 22:40:23 +0200 |
| commit | 0315c0b5ed253853a7b07dc97487522345110548 (patch) | |
| tree | d443535db57c86791d005a181c1228ec9e2024f1 /drivers/net/can | |
| parent | a9c0fb33fd454fda5283281e47d556c81ee9fa47 (diff) | |
can: kvaser_usb: Simplify with dev_err_probe()
dev_err_probe() is used to log an error message during the probe process
of a device.
It can simplify the error path and unify a message template.
Using this helper is totally fine even if err is known to never
be -EPROBE_DEFER.
The benefit compared to a normal dev_err() is the standardized format
of the error code, it being emitted symbolically and the fact that
the error code is returned which allows more compact error paths.
Signed-off-by: Yan Zhen <yanzhen@vivo.com>
Link: https://patch.msgid.link/20240830110651.519119-1-yanzhen@vivo.com
mkl: fix indention
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c | 42 |
1 files changed, 16 insertions, 26 deletions
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c index 35b4132b0639..7d12776ab63e 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c @@ -898,10 +898,8 @@ static int kvaser_usb_probe(struct usb_interface *intf, ops = driver_info->ops; err = ops->dev_setup_endpoints(dev); - if (err) { - dev_err(&intf->dev, "Cannot get usb endpoint(s)"); - return err; - } + if (err) + return dev_err_probe(&intf->dev, err, "Cannot get usb endpoint(s)"); dev->udev = interface_to_usbdev(intf); @@ -912,26 +910,20 @@ static int kvaser_usb_probe(struct usb_interface *intf, dev->card_data.ctrlmode_supported = 0; dev->card_data.capabilities = 0; err = ops->dev_init_card(dev); - if (err) { - dev_err(&intf->dev, - "Failed to initialize card, error %d\n", err); - return err; - } + if (err) + return dev_err_probe(&intf->dev, err, + "Failed to initialize card\n"); err = ops->dev_get_software_info(dev); - if (err) { - dev_err(&intf->dev, - "Cannot get software info, error %d\n", err); - return err; - } + if (err) + return dev_err_probe(&intf->dev, err, + "Cannot get software info\n"); if (ops->dev_get_software_details) { err = ops->dev_get_software_details(dev); - if (err) { - dev_err(&intf->dev, - "Cannot get software details, error %d\n", err); - return err; - } + if (err) + return dev_err_probe(&intf->dev, err, + "Cannot get software details\n"); } if (WARN_ON(!dev->cfg)) @@ -945,18 +937,16 @@ static int kvaser_usb_probe(struct usb_interface *intf, dev_dbg(&intf->dev, "Max outstanding tx = %d URBs\n", dev->max_tx_urbs); err = ops->dev_get_card_info(dev); - if (err) { - dev_err(&intf->dev, "Cannot get card info, error %d\n", err); - return err; - } + if (err) + return dev_err_probe(&intf->dev, err, + "Cannot get card info\n"); if (ops->dev_get_capabilities) { err = ops->dev_get_capabilities(dev); if (err) { - dev_err(&intf->dev, - "Cannot get capabilities, error %d\n", err); kvaser_usb_remove_interfaces(dev); - return err; + return dev_err_probe(&intf->dev, err, + "Cannot get capabilities\n"); } } |