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[07/10] of: Make sure attached nodes don't carry along extra children

Message ID 1406159064-21366-8-git-send-email-grant.likely@linaro.org
State Accepted
Commit 6162dbe49a451f96431a23b4821f05e3bd925bc1
Headers show

Commit Message

Grant Likely July 23, 2014, 11:44 p.m. UTC 
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>
---
 drivers/of/dynamic.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index c875787fa394..b96d83100987 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -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;