[riot-notifications] [RIOT-OS/RIOT] netdev: iolist not checked for empty elements on send (#11163)
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Mon Apr 1 17:57:42 CEST 2019
This loop is run in `cc2420_tx_prepare()` called by `cc2420_send` called by `netdev_driver_t::send()`:
If any iolist entry has length zero, `spi_transfer_regs()` will be called with `len == 0` by `cc2420_fifo_write()`
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