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Fix checking of return values from IoCreateDevice. Spotted by R.T.Sivakumar <rtshiva@gmail.com>.

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svn path=/trunk/; revision=33448
This commit is contained in:
Filip Navara 2008-05-11 19:47:50 +00:00
parent 76256a1bdd
commit b512080393
1 changed files with 19 additions and 17 deletions
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36
reactos/drivers/filesystems/fastfat/iface.c
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@ -56,26 +56,28 @@ DriverEntry(PDRIVER_OBJECT DriverObject,
0, 0,
FALSE, FALSE,
&DeviceObject); &DeviceObject);
if (Status == STATUS_OBJECT_NAME_EXISTS ||
Status == STATUS_OBJECT_NAME_COLLISION)
{
/* Try an other name, if 'Fat' is already in use. 'Fat' is also used by fastfat.sys on W2K */
RtlInitUnicodeString(&DeviceName, L"\\RosFat");
Status = IoCreateDevice(DriverObject,
sizeof(VFAT_GLOBAL_DATA),
&DeviceName,
FILE_DEVICE_DISK_FILE_SYSTEM,
0,
FALSE,
&DeviceObject);
}
if (!NT_SUCCESS(Status)) if (!NT_SUCCESS(Status))
{ {
if (Status == STATUS_OBJECT_NAME_EXISTS || return (Status);
Status == STATUS_OBJECT_NAME_COLLISION)
{
/* Try an other name, if 'Fat' is already in use. 'Fat' is also used by fastfat.sys on W2K */
RtlInitUnicodeString(&DeviceName, L"\\RosFat");
Status = IoCreateDevice(DriverObject,
sizeof(VFAT_GLOBAL_DATA),
&DeviceName,
FILE_DEVICE_DISK_FILE_SYSTEM,
0,
FALSE,
&DeviceObject);
if (!NT_SUCCESS(Status))
{
return (Status);
}
}
} }
VfatGlobalData = DeviceObject->DeviceExtension; VfatGlobalData = DeviceObject->DeviceExtension;
RtlZeroMemory (VfatGlobalData, sizeof(VFAT_GLOBAL_DATA)); RtlZeroMemory (VfatGlobalData, sizeof(VFAT_GLOBAL_DATA));
VfatGlobalData->DriverObject = DriverObject; VfatGlobalData->DriverObject = DriverObject;