From a9080525baeb4420a4944b0244f8f9601bfb690d Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 8 Mar 2022 14:57:39 +0800
Subject: [PATCH 07/12] net: ethernet: lpc_eth: Handle error for clk_enable
Git-commit: 2169b79258c8be803d2595d6456b1e77129fe154
Patch-mainline: v5.17-rc8
References: git-fixes
As the potential failure of the clk_enable(),
it should be better to check it and return error
if fails.
Fixes: b7370112f519 ("lpc32xx: Added ethernet driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
drivers/net/ethernet/nxp/lpc_eth.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index 8d424cf4bb14..219aa6e091a3 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -1469,6 +1469,7 @@ static int lpc_eth_drv_resume(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct netdata_local *pldat;
+ int ret;
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(ndev->irq);
@@ -1478,7 +1479,9 @@ static int lpc_eth_drv_resume(struct platform_device *pdev)
pldat = netdev_priv(ndev);
/* Enable interface clock */
- clk_enable(pldat->clk);
+ ret = clk_enable(pldat->clk);
+ if (ret)
+ return ret;
/* Reset and initialize */
__lpc_eth_reset(pldat);
--
2.16.4