e1000: Do not reinit pci config space to 0

pci_register_device already mallocs the pci config space buffer filled
with zeroes.

Doing this again breaks some default config space writes like
setting the subsystem vendor id and subsystem device id.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

diff --git a/hw/e1000.c b/hw/e1000.c
index b0fe917..940e893 100644 (file)
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -1067,7 +1067,6 @@ pci_e1000_init(PCIBus *bus, NICInfo *nd, int devfn)
        return NULL;
 
     pci_conf = d->dev.config;
-    memset(pci_conf, 0, 256);
 
     pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
     pci_config_set_device_id(pci_conf, E1000_DEVID);