[PATCH]: powerpc/pseries: bugfix: balance calls to pci_device_put

[Linas Vepstas]

[PATCH]: powerpc/pseries: bugfix: balance calls to pci_device_put 

Repeated calls to eeh_remove_device() can result in multiple
(and thus unbalanced) calls to pci_dev_put(). Make sure the
pci_device_put() is called only once (since there was only 
one call to the matching pci_device_get()).

Signed-off-by: Linas Vepstas <linas at austin.ibm.com>

----
 arch/powerpc/platforms/pseries/eeh.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

Index: linux-2.6.17-rc1/arch/powerpc/platforms/pseries/eeh.c
===================================================================
--- linux-2.6.17-rc1.orig/arch/powerpc/platforms/pseries/eeh.c	2006-04-06 15:35:55.000000000 -0500
+++ linux-2.6.17-rc1/arch/powerpc/platforms/pseries/eeh.c	2006-04-06 15:38:04.968433419 -0500
@@ -957,8 +957,10 @@ static void eeh_remove_device(struct pci
 	pci_addr_cache_remove_device(dev);
 
 	dn = pci_device_to_OF_node(dev);
-	PCI_DN(dn)->pcidev = NULL;
-	pci_dev_put (dev);
+	if (PCI_DN(dn)->pcidev) {
+		PCI_DN(dn)->pcidev = NULL;
+		pci_dev_put (dev);
+	}
 }
 
 void eeh_remove_bus_device(struct pci_dev *dev)