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[NTOSKRNL]

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- Release the IO database lock before unloading the device (and driver too) to prevent deadlocks

svn path=/trunk/; revision=56089
This commit is contained in:
Cameron Gutman 2012-03-08 03:02:28 +00:00
parent e0c8eedd51
commit a7caca2e37
1 changed files with 3 additions and 3 deletions
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6
reactos/ntoskrnl/io/iomgr/volume.c
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@ -50,6 +50,9 @@ IopDecrementDeviceObjectRef(IN PDEVICE_OBJECT DeviceObject,
return;
}
/* Release lock */
KeReleaseQueuedSpinLock(LockQueueIoDatabaseLock, OldIrql);
/* Here, DO is not referenced any longer, check if we have to unload it */
if (UnloadIfUnused || IoGetDevObjExtension(DeviceObject)->ExtensionFlags &
(DOE_UNLOAD_PENDING | DOE_DELETE_PENDING | DOE_REMOVE_PENDING))
@ -57,9 +60,6 @@ IopDecrementDeviceObjectRef(IN PDEVICE_OBJECT DeviceObject,
/* Unload the driver */
IopUnloadDevice(DeviceObject);
}
/* Release lock */
KeReleaseQueuedSpinLock(LockQueueIoDatabaseLock, OldIrql);
}
/*