This is a note to let you know that I've just added the patch titled
net: macb: fix an issue about leak related system resources
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-macb-fix-an-issue-about-leak-related-system-resources.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Tue 12 May 2020 10:55:24 AM CEST
From: Dejin Zheng <zhengdejin5@xxxxxxxxx>
Date: Sun, 3 May 2020 20:32:26 +0800
Subject: net: macb: fix an issue about leak related system resources
From: Dejin Zheng <zhengdejin5@xxxxxxxxx>
[ Upstream commit b959c77dac09348955f344104c6a921ebe104753 ]
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_platform_ioremap_resource() to replace ioremap()
to fix it.
Fixes: c218ad559020ff9 ("macb: Add support for SiFive FU540-C000")
Cc: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Reviewed-by: Yash Shah <yash.shah@xxxxxxxxxx>
Suggested-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
Suggested-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Signed-off-by: Dejin Zheng <zhengdejin5@xxxxxxxxx>
Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/cadence/macb_main.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -4054,15 +4054,9 @@ static int fu540_c000_clk_init(struct pl
static int fu540_c000_init(struct platform_device *pdev)
{
- struct resource *res;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (!res)
- return -ENODEV;
-
- mgmt->reg = ioremap(res->start, resource_size(res));
- if (!mgmt->reg)
- return -ENOMEM;
+ mgmt->reg = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(mgmt->reg))
+ return PTR_ERR(mgmt->reg);
return macb_init(pdev);
}
Patches currently in stable-queue which might be from zhengdejin5@xxxxxxxxx are
queue-5.4/net-macb-fix-an-issue-about-leak-related-system-resources.patch
