I2S DMA OUT_DSCR_ERR interrupt firing

[SpComb]

It seems like leds i2s interface is hitting the I2S_OUT_DSCR_ERR_INT interrupt regularly:

W (245416) i2s_intr_out_dscr_err_handler: 

[SpComb]

This is related to i2s_out->dma_eof_desc->next = i2s_out->dma_eof_desc - the intr stops firing if the EOF desc next link is set to NULL. Having this be a self-referential looping link is probably a bad idea.