From 8125e16a63dd3588d3b8c607cbd65bbc05eca868 Mon Sep 17 00:00:00 2001
From: Yuiko Oshino <yuiko.oshino@microchip.com>
Date: Mon, 15 Nov 2021 19:50:48 +0800
Subject: [PATCH] net: ethernet: microchip: lan743x: Fix driver crash when
 lan743x_pm_resume fails

stable inclusion
from stable-5.10.77
commit bfa6fbdb4e39b8483fd7ec70c4c82a5105348193
bugzilla: 185677 https://gitee.com/openeuler/kernel/issues/I4IAP7

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bfa6fbdb4e39b8483fd7ec70c4c82a5105348193

--------------------------------

commit d6423d2ec39cce2bfca418c81ef51792891576bc upstream.

The driver needs to clean up and return when the initialization fails on resume.

Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Acked-by: Weilong Chen <chenweilong@huawei.com>

Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
---
 drivers/net/ethernet/microchip/lan743x_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 8947c3a628109..79fd031f44eb5 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -3066,6 +3066,8 @@ static int lan743x_pm_resume(struct device *dev)
 	if (ret) {
 		netif_err(adapter, probe, adapter->netdev,
 			  "lan743x_hardware_init returned %d\n", ret);
+		lan743x_pci_cleanup(adapter);
+		return ret;
 	}
 
 	/* open netdev when netdev is at running state while resume.