[Xen-devel] [PATCH] ioemu: fix error recovery in pass-through.c

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

return NULL when error. fix error recovery path.

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
 hw/pass-through.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/hw/pass-through.c b/hw/pass-through.c
index e76a3c3..8040f29 100644
--- a/hw/pass-through.c
+++ b/hw/pass-through.c
@@ -3123,8 +3123,10 @@ struct pt_dev * register_real_device(PCIBus *e_bus,
         free_pci_slot = __insert_to_pci_slot(r_bus, r_dev, r_func, 0, NULL);
         if ( free_pci_slot > 0 )
             e_devfn = free_pci_slot  << 3;
-        else
+        else {
             PT_LOG("Error: no free virtual PCI hot plug slot, thus no live 
migration.\n");
+            return NULL;
+        }
     }
 
     msi_translate = direct_pci_msitranslate;
-- 
1.6.0.2

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