Re: [PATCH] dma: at_xdmac: fix a missing check on list iterator

On 27-03-22, 14:11, Xiaomeng Tong wrote:

The bug is here: __func__, desc, &desc->tx_dma_desc.phys, ret, cookie, residue);

The list iterator 'desc' will point to a bogus position containing HEAD if the list is empty or no element is found. To avoid dev_dbg() prints a invalid address, use a new variable 'iter' as the list iterator, while use the origin variable 'desc' as a dedicated pointer to point to the found element.

Applied, thanks