572 	struct mhi_ring *buf_ring;  in mhi_deinit_chan_ctxt()  local
577 	buf_ring = &mhi_chan->buf_ring;  in mhi_deinit_chan_ctxt()
586 	vfree(buf_ring->base);  in mhi_deinit_chan_ctxt()
588 	buf_ring->base = tre_ring->base = NULL;  in mhi_deinit_chan_ctxt()
607 	struct mhi_ring *buf_ring;  in mhi_init_chan_ctxt()  local
613 	buf_ring = &mhi_chan->buf_ring;  in mhi_init_chan_ctxt()
622 	buf_ring->el_size = sizeof(struct mhi_buf_info);  in mhi_init_chan_ctxt()
623 	buf_ring->len = buf_ring->el_size * buf_ring->elements;  in mhi_init_chan_ctxt()
624 	buf_ring->base = vzalloc(buf_ring->len);  in mhi_init_chan_ctxt()
626 	if (!buf_ring->base) {  in mhi_init_chan_ctxt()
643 	buf_ring->rp = buf_ring->wp = buf_ring->base;  in mhi_init_chan_ctxt()
784 		mhi_chan->buf_ring.elements = ch_cfg->local_elements;  in parse_ch_cfg()
785 		if (!mhi_chan->buf_ring.elements)  in parse_ch_cfg()
786 			mhi_chan->buf_ring.elements = mhi_chan->tre_ring.elements;  in parse_ch_cfg()