[PATCH v2 3/4] can: kvaser_usb: Don't send a RESET_CHIP for non-existing channels
From: Ahmed S. Darwish <hidden>
Date: 2014-12-25 02:03:15
Also in:
linux-can, lkml
Subsystem:
can network drivers, the rest · Maintainers:
Marc Kleine-Budde, Vincent Mailhol, Linus Torvalds
From: Ahmed S. Darwish <redacted> "Someone reported me that recent leaf firmwares go in trouble when you send a command for a channel that does not exist. Instead ... you can move the reset command to kvaser_usb_init_one() function." Suggested-by: Olivier Sobrie <redacted> Signed-off-by: Ahmed S. Darwish <redacted> --- drivers/net/can/usb/kvaser_usb.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index 598e251..2791501 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c@@ -1505,6 +1505,10 @@ static int kvaser_usb_init_one(struct usb_interface *intf, struct kvaser_usb_net_priv *priv; int i, err; + err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, channel); + if (err) + return err; + netdev = alloc_candev(sizeof(*priv), MAX_TX_URBS); if (!netdev) { dev_err(&intf->dev, "Cannot alloc candev\n");
@@ -1609,9 +1613,6 @@ static int kvaser_usb_probe(struct usb_interface *intf, usb_set_intfdata(intf, dev); - for (i = 0; i < MAX_NET_DEVICES; i++) - kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, i); - err = kvaser_usb_get_software_info(dev); if (err) { dev_err(&intf->dev,