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net: usb: lan78xx: Use ETIMEDOUT instead of ETIME in lan78xx_stop_hw

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Update lan78xx_stop_hw to return -ETIMEDOUT instead of -ETIME when
a timeout occurs. While -ETIME indicates a general timer expiration,
-ETIMEDOUT is more commonly used for signaling operation timeouts and
provides better consistency with standard error handling in the driver.

The -ETIME checks in tx_complete() and rx_complete() are unrelated to
this error handling change. In these functions, the error values are derived
from urb->status, which reflects USB transfer errors. The error value from
lan78xx_stop_hw will be exposed in the following cases:
- usb_driver::suspend
- net_device_ops::ndo_stop (potentially, though currently the return value
  is not used).

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Link: https://patch.msgid.link/20241216120941.1690908-3-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Oleksij Rempel 2024-12-16 13:09:37 +01:00 committed by Jakub Kicinski
parent 30c63abaee
commit 18bdefe624
1 changed files with 1 additions and 3 deletions
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4
drivers/net/usb/lan78xx.c
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@ -844,9 +844,7 @@ static int lan78xx_stop_hw(struct lan78xx_net *dev, u32 reg, u32 hw_enabled,
} while (!stopped && !time_after(jiffies, timeout));
}
ret = stopped ? 0 : -ETIME;
return ret;
return stopped ? 0 : -ETIMEDOUT;
}
static int lan78xx_flush_fifo(struct lan78xx_net *dev, u32 reg, u32 fifo_flush)