[PATCH net-next v1 19/21] net: usb: lan78xx: Improve error handling in lan78xx_phy_wait_not_busy
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From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: 2024-12-03 07:22:09
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Subsystem:
networking drivers, the rest, usb lan78xx ethernet driver, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Thangaraj Samynathan
Update `lan78xx_phy_wait_not_busy` to forward errors from `lan78xx_read_reg` instead of overwriting them with `-EIO`. Replace `-EIO` with `-ETIMEDOUT` for timeout cases, providing more specific and appropriate error codes. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> --- drivers/net/usb/lan78xx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index fdeb95db529b..9852526be002 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c@@ -961,14 +961,14 @@ static int lan78xx_phy_wait_not_busy(struct lan78xx_net *dev) do { ret = lan78xx_read_reg(dev, MII_ACC, &val); - if (unlikely(ret < 0)) - return -EIO; + if (ret < 0) + return ret; if (!(val & MII_ACC_MII_BUSY_)) return 0; } while (!time_after(jiffies, start_time + HZ)); - return -EIO; + return -ETIMEDOUT; } static inline u32 mii_access(int id, int index, int read)
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2.39.5