Author: tkreuzer
Date: Fri Oct 24 07:16:44 2014
New Revision: 64947
URL: http://svn.reactos.org/svn/reactos?rev=64947&view=rev
Log:
[NTOSKRNL]
Do not try to dereference Irp->UserIosb if it is NULL, to avoid unnecessary
exceptions (inside SEH).
Modified:
trunk/reactos/ntoskrnl/io/iomgr/irp.c
Modified: trunk/reactos/ntoskrnl/io/iomgr/irp.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/irp.c?rev=64947&r1=64946&r2=64947&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/irp.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/irp.c [iso-8859-1] Fri Oct 24
07:16:44 2014
@@ -324,17 +324,21 @@
Key = FileObject->CompletionContext->Key;
}
- /* Use SEH to make sure we don't write somewhere invalid */
- _SEH2_TRY
- {
- /* Save the IOSB Information */
- *Irp->UserIosb = Irp->IoStatus;
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- /* Ignore any error */
- }
- _SEH2_END;
+ /* Check for UserIos */
+ if (Irp->UserIosb != NULL)
+ {
+ /* Use SEH to make sure we don't write somewhere invalid */
+ _SEH2_TRY
+ {
+ /* Save the IOSB Information */
+ *Irp->UserIosb = Irp->IoStatus;
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ /* Ignore any error */
+ }
+ _SEH2_END;
+ }
/* Check if we have an event or a file object */
if (Irp->UserEvent)
