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OF: fix of_find_node_by_path() assumption that of_allnodes is root

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of_find_node_by_path() is borked because of_allnodes is not guaranteed to
contain the root of the tree after using any of the dynamic update functions
because some other nodes ends up as of_allnodes.

Fixes: c22e650e66 of: Make of_find_node_by_path() handle /aliases
Reported-by: pantelis.antoniou@konsulko.com
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Frank Rowand 2014-06-14 20:39:05 -07:00 committed by Rob Herring
parent 28d3ee40ef
commit 99de64984c
1 changed files with 2 additions and 2 deletions
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4
drivers/of/base.c
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@ -1961,9 +1961,9 @@ int of_attach_node(struct device_node *np)
raw_spin_lock_irqsave(&devtree_lock, flags); raw_spin_lock_irqsave(&devtree_lock, flags);
np->sibling = np->parent->child; np->sibling = np->parent->child;
np->allnext = of_allnodes; np->allnext = np->parent->allnext;
np->parent->allnext = np;
np->parent->child = np; np->parent->child = np;
of_allnodes = np;
of_node_clear_flag(np, OF_DETACHED); of_node_clear_flag(np, OF_DETACHED);
raw_spin_unlock_irqrestore(&devtree_lock, flags); raw_spin_unlock_irqrestore(&devtree_lock, flags);