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Commit 1e1d196b authored by Kristian Høgsberg's avatar Kristian Høgsberg Committed by Stefan Richter
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firewire: Set correct buffer lengths for dualbuffer DMA descriptor. 



Signed-off-by: default avatarKristian Høgsberg <krh@redhat.com>
Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
parent 9b32d5f3

drivers/firewire/fw-ohci.c

+3 −4
Original line number Diff line number Diff line
@@ -1583,10 +1583,7 @@ ohci_queue_iso_receive(struct fw_iso_context *base, 
					  descriptor_branch_always);

		db->first_size = cpu_to_le16(ctx->base.header_size);

		db->first_req_count = cpu_to_le16(p->header_length);

		db->second_req_count = cpu_to_le16(p->payload_length);

		db->first_res_count = cpu_to_le16(db->first_req_count);

		db->second_res_count = cpu_to_le16(db->second_req_count);



		db->first_res_count = db->first_req_count;

		db->first_buffer = cpu_to_le32(d_bus + sizeof *db);

		

		if (offset + rest < PAGE_SIZE)
@@ -1594,6 +1591,8 @@ ohci_queue_iso_receive(struct fw_iso_context *base, 
		else

			length = PAGE_SIZE - offset;



		db->second_req_count = cpu_to_le16(length);

		db->second_res_count = db->second_req_count;

		page_bus = page_private(buffer->pages[page]);

		db->second_buffer = cpu_to_le32(page_bus + offset);