On Thu, Feb 11, 2021 at 07:08:20PM +0100, Nicolas Saenz Julienne wrote:
> - if (xfer->tx_buf || xfer->rx_buf) {
> + if ((xfer->tx_buf || xfer->rx_buf) && xfer->len) {
I think the issue here is more that some users were passing in buffers
with zero length transfers, the above check was already intended to
catch this case but was working on the assumption that if there was
nothing to transfer then no buffer would be provided.
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