linux-kernel - [PATCH net v1] net: macb: fix an issue about leak related system resources

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 25 Apr 2020 20:57:37 +0800
From:   Dejin Zheng <zhengdejin5@...il.com>
To:     davem@...emloft.net, paul.walmsley@...ive.com, palmer@...belt.com,
        nicolas.ferre@...rochip.com, yash.shah@...ive.com,
        netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Dejin Zheng <zhengdejin5@...il.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH net v1] net: macb: fix an issue about leak related system resources

A call of the function macb_init() can fail in the function
fu540_c000_init. The related system resources were not released
then. use devm_ioremap() to replace ioremap() for fix it.

Fixes: c218ad559020ff9 ("macb: Add support for SiFive FU540-C000")
Cc: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: Dejin Zheng <zhengdejin5@...il.com>
---
 drivers/net/ethernet/cadence/macb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index a0e8c5bbabc0..edba2eb56231 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -4178,7 +4178,7 @@ static int fu540_c000_init(struct platform_device *pdev)
 	if (!res)
 		return -ENODEV;
 
-	mgmt->reg = ioremap(res->start, resource_size(res));
+	mgmt->reg = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 	if (!mgmt->reg)
 		return -ENOMEM;
 
-- 
2.25.0