net: phy: at803x: fix error return code in at803x_probe()

Fix to return a negative error code from the ccr read error handling
case instead of 0, as done elsewhere in this function.

Fixes: 3265f421 ("net: phy: at803x: add fiber support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20221118103635.254256-1-weiyongjun@huaweicloud.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/phy/at803x.c

@@ -870,8 +870,10 @@ static int at803x_probe(struct phy_device *phydev)
 			.wolopts = 0,
 		};
 
-		if (ccr < 0)
+		if (ccr < 0) {
+			ret = ccr;
 			goto err;
+		}
 		mode_cfg = ccr & AT803X_MODE_CFG_MASK;
 
 		switch (mode_cfg) {