net: phy: fix a return path in get_phy_c45_ids()

[ Upstream commit 6f533ab ]

The return value of phy_c45_probe_present() is stored in "ret", not
"phy_reg", fix this. "phy_reg" always has a positive value if we reach
this return path (since it would have returned earlier otherwise), which
means that the original goal of the patch of not considering -ENODEV
fatal wasn't achieved.

Fixes: 17b4475 ("net: phy: c45 scanning: Don't consider -ENODEV fatal")
Signed-off-by: Charles Perry <charles.perry@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20260409133654.3203336-1-charles.perry@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: ch-perry

drivers/net/phy/phy_device.c

@@ -963,8 +963,8 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr,
 				/* returning -ENODEV doesn't stop bus
 				 * scanning
 				 */
-				return (phy_reg == -EIO ||
-					phy_reg == -ENODEV) ? -ENODEV : -EIO;
+				return (ret == -EIO ||
+					ret == -ENODEV) ? -ENODEV : -EIO;
 
 			if (!ret)
 				continue;