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setupapi: Avoid adding duplicate devices in SetupDiGetClassDevs(). 

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2019-05-27 22:13:20 -05:00 committed by Alexandre Julliard
parent eca57ed672
commit e2194b93b5
2 changed files with 18 additions and 19 deletions
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35
dlls/setupapi/devinst.c
View File

@ -748,7 +748,8 @@ static void delete_device(struct device *device)
heap_free(device);
}
static struct device *SETUPDI_CreateDeviceInfo(struct DeviceInfoSet *set,
/* Create a new device, or return a device already in the set. */
static struct device *create_device(struct DeviceInfoSet *set,
const GUID *class, const WCHAR *instanceid, BOOL phantom)
{
const DWORD one = 1;
@ -758,6 +759,15 @@ static struct device *SETUPDI_CreateDeviceInfo(struct DeviceInfoSet *set,
TRACE("%p, %s, %s, %d\n", set, debugstr_guid(class),
debugstr_w(instanceid), phantom);
LIST_FOR_EACH_ENTRY(device, &set->devices, struct device, entry)
{
if (!strcmpiW(instanceid, device->instanceId))
{
TRACE("Found device %p already in set.\n", device);
return device;
}
}
if (!(device = heap_alloc_zero(sizeof(*device))))
{
SetLastError(ERROR_OUTOFMEMORY);
@ -788,6 +798,8 @@ static struct device *SETUPDI_CreateDeviceInfo(struct DeviceInfoSet *set,
SETUPDI_GuidToString(class, guidstr);
SETUPDI_SetDeviceRegistryPropertyW(device, SPDRP_CLASSGUID,
(const BYTE *)guidstr, sizeof(guidstr));
TRACE("Created new device %p.\n", device);
return device;
}
@ -1620,7 +1632,7 @@ BOOL WINAPI SetupDiCreateDeviceInfoW(HDEVINFO devinfo, const WCHAR *name, const
}
}
if (!(device = SETUPDI_CreateDeviceInfo(set, class, id, TRUE)))
if (!(device = create_device(set, class, id, TRUE)))
return FALSE;
if (description)
@ -2196,8 +2208,7 @@ static void SETUPDI_EnumerateMatchingInterfaces(HDEVINFO DeviceInfoSet,
deviceClassStr[37] = 0;
UuidFromStringW(&deviceClassStr[1],
&deviceClass);
if ((device = SETUPDI_CreateDeviceInfo(set,
&deviceClass, deviceInst, FALSE)))
if ((device = create_device(set, &deviceClass, deviceInst, FALSE)))
SETUPDI_AddDeviceInterfaces(device, subKey, guid, flags);
}
RegCloseKey(deviceKey);
@ -2318,7 +2329,7 @@ static void SETUPDI_EnumerateMatchingDeviceInstances(struct DeviceInfoSet *set,
if (snprintfW(id, ARRAY_SIZE(id), fmt, enumerator,
deviceName, deviceInstance) != -1)
{
SETUPDI_CreateDeviceInfo(set, &deviceClass, id, FALSE);
create_device(set, &deviceClass, id, FALSE);
}
}
}
@ -3398,7 +3409,7 @@ BOOL WINAPI SetupDiOpenDeviceInfoW(HDEVINFO devinfo, PCWSTR instance_id, HWND hw
PSP_DEVINFO_DATA device_data)
{
struct DeviceInfoSet *set;
struct device *device = NULL, *enum_device;
struct device *device;
WCHAR classW[40];
GUID guid;
HKEY enumKey = NULL;
@ -3448,17 +3459,7 @@ BOOL WINAPI SetupDiOpenDeviceInfoW(HDEVINFO devinfo, PCWSTR instance_id, HWND hw
goto done;
}
/* If current set already contains a same instance, don't create new ones */
LIST_FOR_EACH_ENTRY(enum_device, &set->devices, struct device, entry)
{
if (!strcmpiW(instance_id, enum_device->instanceId))
{
device = enum_device;
break;
}
}
if (!device && !(device = SETUPDI_CreateDeviceInfo(set, &guid, instance_id, FALSE)))
if (!(device = create_device(set, &guid, instance_id, FALSE)))
goto done;
if (!device_data || device_data->cbSize == sizeof(SP_DEVINFO_DATA))

2
dlls/setupapi/tests/devinst.c
View File

@ -2933,7 +2933,6 @@ todo_wine {
ok(set != INVALID_HANDLE_VALUE, "Failed to create device list, error %#x.\n", GetLastError());
check_device_list(set, &GUID_NULL);
check_device_info(set, 0, &guid, "ROOT\\LEGACY_BOGUS\\FOO");
todo_wine
check_device_info(set, 1, NULL, NULL);
check_device_iface(set, NULL, &iface_guid, 0, 0, "\\\\?\\root#legacy_bogus#foo#{deadbeef-3f65-11db-b704-0011955c2bdb}");
check_device_iface(set, NULL, &iface_guid, 1, 0, NULL);
@ -2980,7 +2979,6 @@ todo_wine {
ok(set != INVALID_HANDLE_VALUE, "Failed to create device list, error %#x.\n", GetLastError());
check_device_list(set, &GUID_NULL);
check_device_info(set, 0, &guid, "ROOT\\LEGACY_BOGUS\\FOO");
todo_wine
check_device_info(set, 1, NULL, NULL);
check_device_iface(set, NULL, &iface_guid, 0, 0, "\\\\?\\root#legacy_bogus#foo#{deadbeef-3f65-11db-b704-0011955c2bdb}");
check_device_iface(set, NULL, &iface_guid, 1, 0, NULL);