19-rpaphp-crashing.patch
This patch fixes a bug related to dlpar PHB add, after a PHB removal.
-- The crash was due to the PHB not having a pci_dn structure yet,
when the phb is being added.
This code survived testing, of adding and removeig the PHB and all slots
underneath it, 17 times so far, as of this writing.
Signed-off-by: Linas Vepstas <[email protected]>
emailed to
To: [email protected]
Cc: [email protected], [email protected],
[email protected], [email protected]
Subject: [PATCH] rpaphp: PCI Hotplug crash on PHB DLPAR add
on 4 October 2005
Index: linux-2.6.14-git3/drivers/pci/hotplug/rpadlpar_core.c
===================================================================
--- linux-2.6.14-git3.orig/drivers/pci/hotplug/rpadlpar_core.c 2005-11-02 14:29:02.115685162 -0600
+++ linux-2.6.14-git3/drivers/pci/hotplug/rpadlpar_core.c 2005-11-02 14:35:52.800111285 -0600
@@ -306,7 +306,7 @@
{
struct pci_controller *phb;
- if (PCI_DN(dn)->phb) {
+ if (PCI_DN(dn) && PCI_DN(dn)->phb) {
/* PHB already exists */
return -EINVAL;
}
-
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