diff options
Diffstat (limited to 'qga/commands-win32.c')
| -rw-r--r-- | qga/commands-win32.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 3092566313..892082504f 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -636,10 +636,10 @@ static GuestPCIAddress *get_pci_info(int number, Error **errp) if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data, &GUID_DEVINTERFACE_DISK, 0, &dev_iface_data)) { - while (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, - pdev_iface_detail_data, - size, &size, - &dev_info_data)) { + if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, + pdev_iface_detail_data, + size, &size, + &dev_info_data)) { if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { pdev_iface_detail_data = g_malloc(size); pdev_iface_detail_data->cbSize = @@ -651,6 +651,16 @@ static GuestPCIAddress *get_pci_info(int number, Error **errp) } } + if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, + pdev_iface_detail_data, + size, &size, + &dev_info_data)) { + // pdev_iface_detail_data already is allocated + error_setg_win32(errp, GetLastError(), + "failed to get device interfaces"); + goto end; + } + dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); @@ -680,8 +690,8 @@ static GuestPCIAddress *get_pci_info(int number, Error **errp) ULONG dev_id_size = 0; size = 0; - while (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, - parent_dev_id, size, &size)) { + if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, + parent_dev_id, size, &size)) { if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { parent_dev_id = g_malloc(size); } else { @@ -691,6 +701,14 @@ static GuestPCIAddress *get_pci_info(int number, Error **errp) } } + if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, + parent_dev_id, size, &size)) { + // parent_dev_id already is allocated + error_setg_win32(errp, GetLastError(), + "failed to get device instance ID"); + goto end; + } + /* * CM API used here as opposed to * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...) |