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ntoskrnl.exe: Reuse IRP input buffer if it wasn't used. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2019-05-27 13:38:59 +02:00 committed by Alexandre Julliard
parent 6870bb74d4
commit 0138da5025
1 changed files with 3 additions and 6 deletions
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9
dlls/ntoskrnl.exe/ntoskrnl.c
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@ -633,7 +633,6 @@ static NTSTATUS dispatch_create( struct dispatch_context *context )
irp->Flags |= IRP_CREATE_OPERATION;
dispatch_irp( device, irp, context );
HeapFree( GetProcessHeap(), 0, context->in_buff );
return STATUS_SUCCESS;
}
@ -671,7 +670,6 @@ static NTSTATUS dispatch_close( struct dispatch_context *context )
irp->Flags |= IRP_CLOSE_OPERATION;
dispatch_irp( device, irp, context );
HeapFree( GetProcessHeap(), 0, context->in_buff );
return STATUS_SUCCESS;
}
@ -714,7 +712,6 @@ static NTSTATUS dispatch_read( struct dispatch_context *context )
irp->Flags |= IRP_DEALLOCATE_BUFFER; /* deallocate out_buff */
dispatch_irp( device, irp, context );
HeapFree( GetProcessHeap(), 0, context->in_buff );
return STATUS_SUCCESS;
}
@ -738,6 +735,7 @@ static NTSTATUS dispatch_write( struct dispatch_context *context )
if (!(irp = IoBuildSynchronousFsdRequest( IRP_MJ_WRITE, device, context->in_buff, context->in_size,
&offset, NULL, NULL )))
return STATUS_NO_MEMORY;
context->in_buff = NULL;
irp->Tail.Overlay.OriginalFileObject = file;
irp->RequestorMode = UserMode;
@ -779,7 +777,6 @@ static NTSTATUS dispatch_flush( struct dispatch_context *context )
dispatch_irp( device, irp, context );
HeapFree( GetProcessHeap(), 0, context->in_buff );
return STATUS_SUCCESS;
}
@ -841,6 +838,7 @@ static NTSTATUS dispatch_ioctl( struct dispatch_context *context )
irp->Tail.Overlay.OriginalFileObject = file;
irp->RequestorMode = UserMode;
irp->AssociatedIrp.SystemBuffer = context->in_buff;
context->in_buff = NULL;
irp->Flags |= IRP_DEALLOCATE_BUFFER; /* deallocate in_buff */
dispatch_irp( device, irp, context );
@ -981,8 +979,7 @@ NTSTATUS CDECL wine_ntoskrnl_main_loop( HANDLE stop_event )
if (status == STATUS_SUCCESS)
{
context.handle = 0; /* status reported by IoCompleteRequest */
context.in_size = 4096;
context.in_buff = NULL;
if (!context.in_buff) context.in_size = 4096;
}
break;
case STATUS_BUFFER_OVERFLOW: