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soc: renesas: renesas-soc: Release 'chipid' from ioremap()

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[ 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: cb5508e47e ("soc: renesas: Add support for reading product revision for RZ/G2L family")
Signed-off-by: Li Yang <lidaxian@hust.edu.cn>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230331095545.31823-1-lidaxian@hust.edu.cn
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Li Yang 2023-03-31 17:55:44 +08:00 • committed by Greg Kroah-Hartman
parent 724911eeae
commit 62cb9c468d
1 changed files with 4 additions and 1 deletions
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5
drivers/soc/renesas/renesas-soc.c
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@ -454,8 +454,11 @@ static int __init renesas_soc_init(void)
} }
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr) if (!soc_dev_attr) {
if (chipid)
iounmap(chipid);
return -ENOMEM; return -ENOMEM;
}
np = of_find_node_by_path("/"); np = of_find_node_by_path("/");
of_property_read_string(np, "model", &soc_dev_attr->machine); of_property_read_string(np, "model", &soc_dev_attr->machine);