[PATCH v2 1/1] power: reset: at91-reset: use devm_of_iomap

From: Claudiu Beznea
Date: Fri Apr 02 2021 - 06:50:32 EST


Use devm_of_iomap() to map resources. This will avoid the necessity to
track the mapped resources and free them on failure path or on remove.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Suggested-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
---

Changes in v2:
- use devm_of_iomap()
- change commit description and title to match to the new approach
- add Suggested-by tag

drivers/power/reset/at91-reset.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
index 3ff9d93a5226..026649409135 100644
--- a/drivers/power/reset/at91-reset.c
+++ b/drivers/power/reset/at91-reset.c
@@ -192,7 +192,7 @@ static int __init at91_reset_probe(struct platform_device *pdev)
if (!reset)
return -ENOMEM;

- reset->rstc_base = of_iomap(pdev->dev.of_node, 0);
+ reset->rstc_base = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 0, NULL);
if (!reset->rstc_base) {
dev_err(&pdev->dev, "Could not map reset controller address\n");
return -ENODEV;
@@ -202,7 +202,7 @@ static int __init at91_reset_probe(struct platform_device *pdev)
/* we need to shutdown the ddr controller, so get ramc base */
for_each_matching_node_and_match(np, at91_ramc_of_match, &match) {
reset->ramc_lpr = (u32)match->data;
- reset->ramc_base[idx] = of_iomap(np, 0);
+ reset->ramc_base[idx] = devm_of_iomap(&pdev->dev, np, 0, NULL);
if (!reset->ramc_base[idx]) {
dev_err(&pdev->dev, "Could not map ram controller address\n");
of_node_put(np);
--
2.25.1