CORE-13048. [I8042PRT] keyboard.c: Restore 1 "Irql =" (which was lost in r30000)...

[I8042PRT] Restore 1 "Irql =" (which was lost in r30000). CORE-13048

diff --git a/drivers/input/i8042prt/keyboard.c b/drivers/input/i8042prt/keyboard.c
index e007d28..198ec8f 100644 (file)
--- a/drivers/input/i8042prt/keyboard.c
+++ b/drivers/input/i8042prt/keyboard.c
@@ -369,7 +369,10 @@ i8042KbdDpcRoutine(
                DeviceExtension->KeyboardBuffer + KeysInBufferCopy,
                &KeysTransferred);
 
-       KeAcquireInterruptSpinLock(PortDeviceExtension->HighestDIRQLInterrupt);
+       /* Validate that the callback didn't change the Irql. */
+       ASSERT(KeGetCurrentIrql() == Irql);
+
+       Irql = KeAcquireInterruptSpinLock(PortDeviceExtension->HighestDIRQLInterrupt);
        DeviceExtension->KeysInBuffer -= KeysTransferred;
        KeReleaseInterruptSpinLock(PortDeviceExtension->HighestDIRQLInterrupt, Irql);
 }