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PCI: pnv_php: Add missing of_node_put()

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The device node iterators perform an of_node_get() on each iteration, so a
jump out of the loop requires an of_node_put().

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
+  of_node_put(child);
?  break;
   ...
}
... when != child
// </smpl>

Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
This commit is contained in:
Julia Lawall 2018-05-23 21:07:15 +02:00 • committed by Bjorn Helgaas
commit 5d9c6b8ae9
1 changed files with 6 additions and 2 deletions
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8
drivers/pci/hotplug/pnv_php.c
View file

@ -220,12 +220,16 @@ static int pnv_php_populate_changeset(struct of_changeset *ocs,
for_each_child_of_node(dn, child) {
ret = of_changeset_attach_node(ocs, child);
if (ret)
if (ret) {
of_node_put(child);
break;
}
ret = pnv_php_populate_changeset(ocs, child);
if (ret)
if (ret) {
of_node_put(child);
break;
}
}
return ret;