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[PARPORT] Fix I/O port length check

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The Standard Parallel Port (SPP) has 3 registers, not 4: data, status, control
This fixes the driver on the Compaq N600c laptop
This commit is contained in:
Victor Perevertkin
2020-10-21 15:24:10 +03:00
parent f26754e6dd
commit ba09834c5e
1 changed files with 1 additions and 1 deletions
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2
drivers/parallel/parport/fdo.c
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@@ -161,7 +161,7 @@ FdoStartDevice(IN PDEVICE_OBJECT DeviceObject,
if (DeviceExtension->BaseAddress == 0)
{
if (PartialDescriptor->u.Port.Length < 4)
if (PartialDescriptor->u.Port.Length < 3)
return STATUS_INSUFFICIENT_RESOURCES;
DeviceExtension->BaseAddress = PartialDescriptor->u.Port.Start.u.LowPart;