This is a note to let you know that I've just added the patch titled
of: unittest: kmemleak on changeset destroy
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
of-unittest-kmemleak-on-changeset-destroy.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bb9849a504169887b187abd32663f707005f5675
Author: Frank Rowand <frank.rowand@xxxxxxxx>
Date: Thu Apr 16 16:42:46 2020 -0500
of: unittest: kmemleak on changeset destroy
[ Upstream commit b3fb36ed694b05738d45218ea72cf7feb10ce2b1 ]
kmemleak reports several memory leaks from devicetree unittest.
This is the fix for problem 1 of 5.
of_unittest_changeset() reaches deeply into the dynamic devicetree
functions. Several nodes were left with an elevated reference
count and thus were not properly cleaned up. Fix the reference
counts so that the memory will be freed.
Fixes: 201c910bd689 ("of: Transactional DT support.")
Reported-by: Erhard F. <erhard_f@xxxxxxxxxxx>
Signed-off-by: Frank Rowand <frank.rowand@xxxxxxxx>
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index aeb6d3009ae92..144d123f6ea4f 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -539,6 +539,10 @@ static void __init of_unittest_changeset(void)
unittest(!of_changeset_revert(&chgset), "revert failed\n");
of_changeset_destroy(&chgset);
+
+ of_node_put(n1);
+ of_node_put(n2);
+ of_node_put(n21);
#endif
}
