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of: unittest: fix memory leak in unittest_data_add

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[ Upstream commit e13de8fe0d ]

In unittest_data_add, a copy buffer is created via kmemdup. This buffer
is leaked if of_fdt_unflatten_tree fails. The release for the
unittest_data buffer is added.

Fixes: b951f9dc7f ("Enabling OF selftest to run without machine's devicetree")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Navid Emamdoost
2019-10-04 13:58:43 -05:00
committed by Greg Kroah-Hartman
parent 1c2c7b43a2
commit 0228cd262d
1 changed files with 1 additions and 0 deletions
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drivers/of/unittest.c
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@@ -933,6 +933,7 @@ static int __init unittest_data_add(void)
of_fdt_unflatten_tree(unittest_data, NULL, &unittest_data_node);
if (!unittest_data_node) {
pr_warn("%s: No tree to attach; not running tests\n", __func__);
kfree(unittest_data);
return -ENODATA;
}
of_node_set_flag(unittest_data_node, OF_DETACHED);