From: Frank Rowand frank.rowand@sony.com
commit 216830d2413cc61be3f76bc02ffd905e47d2439e upstream.
kmemleak reports several memory leaks from devicetree unittest. This is the fix for problem 2 of 5.
of_unittest_platform_populate() left an elevated reference count for grandchild nodes (which are platform devices). Fix the platform device reference counts so that the memory will be freed.
Fixes: fb2caa50fbac ("of/selftest: add testcase for nodes with same name and address") Reported-by: Erhard F. erhard_f@mailbox.org Signed-off-by: Frank Rowand frank.rowand@sony.com Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/of/unittest.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -1059,10 +1059,13 @@ static void __init of_unittest_platform_
of_platform_populate(np, match, NULL, &test_bus->dev); for_each_child_of_node(np, child) { - for_each_child_of_node(child, grandchild) - unittest(of_find_device_by_node(grandchild), + for_each_child_of_node(child, grandchild) { + pdev = of_find_device_by_node(grandchild); + unittest(pdev, "Could not create device for node '%pOFn'\n", grandchild); + of_dev_put(pdev); + } }
of_platform_depopulate(&test_bus->dev);