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

From: Dejin Zheng
Date: Sat Apr 25 2020 - 08:57:49 EST


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@xxxxxxxxx>
Signed-off-by: Dejin Zheng <zhengdejin5@xxxxxxxxx>
---
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