xwayland/selection: make `xwm_data_source_write` return 0 on failure
The `fd` is marked `O_NONBLOCK`, so `write` will never spuriously return
`EINTR`. Therefore, `write` failing is permanent, and we can return 0 to
make the return value meaningful.
@@ -28,7 +28,7 @@ static int xwm_data_source_write(int fd, uint32_t mask, void *data) {
xwm_selection_transfer_destroy_property_reply(transfer);
xwm_selection_transfer_remove_event_source(transfer);
xwm_selection_transfer_close_wl_client_fd(transfer);
- return 1;
+ return 0;
}
wlr_log(WLR_DEBUG, "wrote %zd (chunk size %zd) of %d bytes",
