From: Li Yang <lidaxian@xxxxxxxxxxx>
[ Upstream commit fc187a46a8e682f0f1167b230792b88de01ceaa0 ]
Smatch reports:
drivers/soc/renesas/renesas-soc.c:536 renesas_soc_init() warn:
'chipid' from ioremap() not released on lines: 475.
If soc_dev_atrr allocation is failed, function renesas_soc_init()
will return without releasing 'chipid' from ioremap().
Fix this by adding function iounmap().
Fixes: cb5508e47e60 ("soc: renesas: Add support for reading product revision for RZ/G2L family")
Signed-off-by: Li Yang <lidaxian@xxxxxxxxxxx>
Reviewed-by: Dan Carpenter <error27@xxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230331095545.31823-1-lidaxian@xxxxxxxxxxx
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/soc/renesas/renesas-soc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c
index 621ceaa047d47..057b85b158f99 100644
--- a/drivers/soc/renesas/renesas-soc.c
+++ b/drivers/soc/renesas/renesas-soc.c
@@ -454,8 +454,11 @@ static int __init renesas_soc_init(void)
}
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
- if (!soc_dev_attr)
+ if (!soc_dev_attr) {
+ if (chipid)
+ iounmap(chipid);
return -ENOMEM;
+ }
np = of_find_node_by_path("/");
of_property_read_string(np, "model", &soc_dev_attr->machine);
--
2.39.2
