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- Prevent an infinite loop in CdfsDeviceIoControl if the the verify request is successful but IoCallDriver keeps returning STATUS_VERIFY_REQUIRED

svn path=/trunk/; revision=55057
This commit is contained in:
Cameron Gutman 2012-01-21 22:16:46 +00:00
parent 1481da8a20
commit a9d56f0a13
1 changed files with 13 additions and 3 deletions
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16
reactos/drivers/filesystems/cdfs/common.c
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@ -154,6 +154,7 @@ CdfsDeviceIoControl (IN PDEVICE_OBJECT DeviceObject,
KEVENT Event;
PIRP Irp;
NTSTATUS Status;
BOOLEAN LastChance = FALSE;
DPRINT("CdfsDeviceIoControl(DeviceObject %x, CtlCode %x, "
"InputBuffer %x, InputBufferSize %x, OutputBuffer %x, "
@ -208,21 +209,30 @@ again:
{
PDEVICE_OBJECT DeviceToVerify;
DPRINT1("STATUS_VERIFY_REQUIRED\n");
DeviceToVerify = IoGetDeviceToVerify(PsGetCurrentThread());
IoSetDeviceToVerify(PsGetCurrentThread(), NULL);
if (DeviceToVerify)
{
Status = IoVerifyVolume(DeviceToVerify, FALSE);
DPRINT1("IoVerifyVolume() returned (Status %lx)\n", Status);
DPRINT("IoVerifyVolume() returned (Status %lx)\n", Status);
}
if (NT_SUCCESS(Status))
if (NT_SUCCESS(Status) && !LastChance)
{
DPRINT1("Volume verify succeeded; trying request again\n");
LastChance = TRUE;
goto again;
}
else if (NT_SUCCESS(Status))
{
DPRINT1("Failed to read after successful verify, aborting\n");
Status = STATUS_DEVICE_NOT_READY;
}
else
{
DPRINT1("IoVerifyVolume() failed (Status %lx)\n", Status);
}
}
DPRINT("Returning Status %x\n", Status);