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powerpc/pseries: Do all node initialization in dlpar_parse_cc_node 

Currently the OF_DYNAMIC and kref initialization for a node happens in
dlpar_attach_node. However, a node passed to dlpar_attach_node may be a tree
containing child nodes, and no initialization traversal is done on the
tree. Since the children never get their kref initialized or the OF_DYNAMIC
flag set these nodes are prevented from ever being released from memory
should they become detached. This initialization step is better done at the
time each node is allocated in dlpar_parse_cc_node.

Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Tyrel Datwyler 2013-08-14 22:23:49 -07:00 committed by Benjamin Herrenschmidt
parent c8f5a57c62
commit 1578cb76d4
1 changed files with 3 additions and 2 deletions
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5
arch/powerpc/platforms/pseries/dlpar.c
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@ -83,6 +83,9 @@ static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa)
return NULL;
}
of_node_set_flag(dn, OF_DYNAMIC);
kref_init(&dn->kref);
return dn;
}
@ -256,8 +259,6 @@ int dlpar_attach_node(struct device_node *dn)
{
int rc;
of_node_set_flag(dn, OF_DYNAMIC);
kref_init(&dn->kref);
dn->parent = derive_parent(dn->full_name);
if (!dn->parent)
return -ENOMEM;