firewire: ohci: fix index of pages for dma address to 1394 OHCI IT context

The index of pages for dma address was changed wrongly. This commit
corrents it.

Fixes: ef6bdff ("firewire: core: stop using page private to store DMA mapping address")
Link: https://lore.kernel.org/r/20260114131729.16133-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>

Author: takaswie

drivers/firewire/ohci.c

@@ -3272,7 +3272,7 @@ static int queue_iso_transmit(struct iso_context *ctx,
 			min(next_page_index, payload_end_index) - payload_index;
 		pd[i].req_count    = cpu_to_le16(length);
 
-		dma_addr_t dma_addr = buffer->dma_addrs[i];
+		dma_addr_t dma_addr = buffer->dma_addrs[page];
 		pd[i].data_address = cpu_to_le32(dma_addr + offset);
 
 		dma_sync_single_range_for_device(ctx->context.ohci->card.device,