coco3: tty: correct ioctl error return

diff --git a/Kernel/platform-coco3/devtty.c b/Kernel/platform-coco3/devtty.c
index 6fa56a4..c30f335 100644 (file)
--- a/Kernel/platform-coco3/devtty.c
+++ b/Kernel/platform-coco3/devtty.c
@@ -514,7 +514,7 @@ int gfx_ioctl(uint8_t minor, uarg_t arg, char *ptr)
                if( minor == curminor ) apply_gime( minor );
                return 0;
        }
- error:        udata.u_error = ENOTTY;
+ error:        udata.u_error = EINVAL;
        return -1;
 }