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soc: samsung: chipid: Fix memory leak in error path 

Currently when the call to product_id_to_soc_id fails there
is a memory leak of soc_dev_attr->revision and soc_dev_attr
on the error return path.  Fix this by adding a common error
return path that frees there obects and use this for two
error return paths.

Addresses-Coverity: ("Resource leak")
Fixes: 3253b7b7cd ("soc: samsung: Add exynos chipid driver support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
alistair/sunxi64-5.4-dsi
Colin Ian King 2019-08-16 23:21:51 +01:00 committed by Krzysztof Kozlowski
parent 40d8aff614
commit 3636e82135
1 changed files with 10 additions and 4 deletions
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14
drivers/soc/samsung/exynos-chipid.c
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@ -81,15 +81,15 @@ int __init exynos_chipid_early_init(void)
soc_dev_attr->soc_id = product_id_to_soc_id(product_id);
if (!soc_dev_attr->soc_id) {
pr_err("Unknown SoC\n");
return -ENODEV;
ret = -ENODEV;
goto err;
}
/* please note that the actual registration will be deferred */
soc_dev = soc_device_register(soc_dev_attr);
if (IS_ERR(soc_dev)) {
kfree(soc_dev_attr->revision);
kfree(soc_dev_attr);
return PTR_ERR(soc_dev);
ret = PTR_ERR(soc_dev);
goto err;
}
/* it is too early to use dev_info() here (soc_dev is NULL) */
@ -97,5 +97,11 @@ int __init exynos_chipid_early_init(void)
soc_dev_attr->soc_id, product_id, revision);
return 0;
err:
kfree(soc_dev_attr->revision);
kfree(soc_dev_attr);
return ret;
}
early_initcall(exynos_chipid_early_init);