[Fix] Hook memleak.

src/hook.c

@@ -94,14 +94,17 @@ void hook_rm(unsigned int id) {
     else break;
   }
 
+  /* Mark to delete, but do not delete yet, hooks are running. */
   if(hook_runningstack) {
     hook_stack[m].delete = 1;
     return;
   }
 
+  /* Free the hook. */
+  hook_free(&hook_stack[m]);
+
   /* Last hook, just clip the stack. */
   if(m == (hook_nstack-1)) {
-    hook_free(&hook_stack[m]);
     hook_nstack--;
     return;
   }