server: Cancel process asyncs on process termination.

server/async.c

@@ -369,6 +369,11 @@ restart:
     return woken;
 }
 
+void cancel_process_asyncs( struct process *process )
+{
+    cancel_async( process, NULL, NULL, 0 );
+}
+
 /* wake up async operations on the queue */
 void async_wake_up( struct async_queue *queue, unsigned int status )
 {

server/file.h

@@ -175,6 +175,7 @@ extern void async_terminate( struct async *async, unsigned int status );
 extern void async_wake_up( struct async_queue *queue, unsigned int status );
 extern struct completion *fd_get_completion( struct fd *fd, apc_param_t *p_key );
 extern void fd_copy_completion( struct fd *src, struct fd *dst );
+extern void cancel_process_asyncs( struct process *process );
 
 /* access rights that require Unix read permission */
 #define FILE_UNIX_READ_ACCESS (FILE_READ_DATA|FILE_READ_ATTRIBUTES|FILE_READ_EA)

server/process.c

@@ -840,6 +840,7 @@ static void process_killed( struct process *process )
     process->winstation = 0;
     process->desktop = 0;
     close_process_handles( process );
+    cancel_process_asyncs( process );
     if (process->idle_event)
     {
         release_object( process->idle_event );