[PATCH 2/2] eeh: fixing pci_dev dependency

[leitao at linux.vnet.ibm.com]

Currently pci_dev can be null when EEH is in action. This patch
just assure that we pci_dev is not NULL before calling pci_dev_put.

Signed-off-by: Breno Leitao <leitao at linux.vnet.ibm.com>
Signed-off-by: Linas Vepstas <linasvepstas at gmail.com>
---
 arch/powerpc/platforms/pseries/eeh_event.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index ec5df8f..7956e46 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -85,7 +85,8 @@ static int eeh_event_handler(void * dummy)
 	pdn = handle_eeh_events(event);
 
 	eeh_clear_slot(event->dn, EEH_MODE_RECOVERING);
-	pci_dev_put(event->dev);
+	if (event->dev)
+		pci_dev_put(event->dev);
 	kfree(event);
 	mutex_unlock(&eeh_event_mutex);
 
-- 
1.6.0.2