linux-kernel - [PATCH 5.9 018/252] net: ethernet: ti: am65-cpts: update ret when ptp

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Message-Id: <20201123121836.473572157@linuxfoundation.org>
Date:   Mon, 23 Nov 2020 13:19:28 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Wang Qing <wangqing@...o.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Richard Cochran <richardcochran@...il.com>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH 5.9 018/252] net: ethernet: ti: am65-cpts: update ret when ptp_clock is ERROR

From: Wang Qing <wangqing@...o.com>

[ Upstream commit 81e329e93b860b31c216b40eb5e1373db0ffe0ba ]

We always have to update the value of ret, otherwise the
 error value may be the previous one.

Fixes: f6bd59526ca5 ("net: ethernet: ti: introduce am654 common platform time sync driver")
Signed-off-by: Wang Qing <wangqing@...o.com>
[grygorii.strashko@...com: fix build warn, subj add fixes tag]
Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
Acked-by: Richard Cochran <richardcochran@...il.com>
Link: https://lore.kernel.org/r/20201112164541.3223-1-grygorii.strashko@ti.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/ti/am65-cpts.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/net/ethernet/ti/am65-cpts.c
+++ b/drivers/net/ethernet/ti/am65-cpts.c
@@ -1016,8 +1016,7 @@ struct am65_cpts *am65_cpts_create(struc
 	if (IS_ERR_OR_NULL(cpts->ptp_clock)) {
 		dev_err(dev, "Failed to register ptp clk %ld\n",
 			PTR_ERR(cpts->ptp_clock));
-		if (!cpts->ptp_clock)
-			ret = -ENODEV;
+		ret = cpts->ptp_clock ? PTR_ERR(cpts->ptp_clock) : -ENODEV;
 		goto refclk_disable;
 	}
 	cpts->phc_index = ptp_clock_index(cpts->ptp_clock);