depmod: Check amount of memories

The code does not support 65535 or more modules. Since this value is
probably never reached, add a proper check after array building and
do not rely solely on an assert later in code path.

Signed-off-by: Tobias Stoeckmann <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Link: #158
Signed-off-by: Lucas De Marchi <[email protected]>

tools/depmod.c

@@ -1428,6 +1428,8 @@ static int depmod_modules_build_array(struct depmod *depmod)
 		if (err < 0)
 			return err;
 	}
+	if (depmod->modules.count >= UINT16_MAX)
+		return -ERANGE;
 
 	return 0;
 }