diff options
| -rw-r--r-- | drivers/firewire/sbp2.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c index e5df822a8130..8f83bffb43e7 100644 --- a/drivers/firewire/sbp2.c +++ b/drivers/firewire/sbp2.c @@ -425,19 +425,20 @@ static void sbp2_status_write(struct fw_card *card, struct fw_request *request, struct sbp2_logical_unit *lu = callback_data; struct sbp2_orb *orb; struct sbp2_status status; - size_t header_size; unsigned long flags; if (tcode != TCODE_WRITE_BLOCK_REQUEST || - length == 0 || length > sizeof(status)) { + length < 8 || length > sizeof(status)) { fw_send_response(card, request, RCODE_TYPE_ERROR); return; } - header_size = min(length, 2 * sizeof(u32)); - fw_memcpy_from_be32(&status, payload, header_size); - if (length > header_size) - memcpy(status.data, payload + 8, length - header_size); + status.status = be32_to_cpup(payload); + status.orb_low = be32_to_cpup(payload + 4); + memset(status.data, 0, sizeof(status.data)); + if (length > 8) + memcpy(status.data, payload + 8, length - 8); + if (STATUS_GET_SOURCE(status) == 2 || STATUS_GET_SOURCE(status) == 3) { fw_notify("non-orb related status write, not handled\n"); fw_send_response(card, request, RCODE_COMPLETE); |