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ich/ahci: fix uninitialized memory use 

The commit 667bb59d23
uses d->ahci.mem before it is initialized by
ahci_init(). Fix this by calling ahci_init() first thing
so that it's safe to use all fields in the ahci state struct.

Reported-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Reported-by: Jan Kiszka <jan.kiszka@web.de>
Tested-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2011-05-15 19:27:34 +03:00
parent 5300f1a548
commit 69c8944f17
1 changed files with 2 additions and 2 deletions
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4
hw/ide/ich.c
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@ -77,6 +77,8 @@ static int pci_ich9_ahci_init(PCIDevice *dev)
struct AHCIPCIState *d;
d = DO_UPCAST(struct AHCIPCIState, card, dev);
ahci_init(&d->ahci, &dev->qdev, 6);
pci_config_set_vendor_id(d->card.config, PCI_VENDOR_ID_INTEL);
pci_config_set_device_id(d->card.config, PCI_DEVICE_ID_INTEL_82801IR);
@ -97,8 +99,6 @@ static int pci_ich9_ahci_init(PCIDevice *dev)
pci_register_bar_simple(&d->card, 5, 0x1000, 0, d->ahci.mem);
msi_init(dev, 0x50, 1, true, false);
ahci_init(&d->ahci, &dev->qdev, 6);
d->ahci.irq = d->card.irq[0];
return 0;