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of: Make sure attached nodes don't carry along extra children

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The child pointer does not get cleared when attaching new nodes which
could cause the tree to be inconsistent. Clear the child pointer in
__of_attach_node() to be absolutely sure that the structure remains in a
consistent layout.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
(cherry picked from commit 6162dbe49a)
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Grant Likely
2014-07-16 08:48:46 -06:00
committed by Mark Brown
parent 952f9f440c
commit 12f293f229
1 changed files with 1 additions and 0 deletions
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drivers/of/dynamic.c
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@@ -98,6 +98,7 @@ int of_property_notify(int action, struct device_node *np,
void __of_attach_node(struct device_node *np)
{
np->child = NULL;
np->sibling = np->parent->child;
np->allnext = np->parent->allnext;
np->parent->allnext = np;