diff options
| -rw-r--r-- | sys/powerpc/ps3/ps3cdrom.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/powerpc/ps3/ps3cdrom.c b/sys/powerpc/ps3/ps3cdrom.c index a654b4f..afbe0f7 100644 --- a/sys/powerpc/ps3/ps3cdrom.c +++ b/sys/powerpc/ps3/ps3cdrom.c @@ -557,7 +557,9 @@ ps3cdrom_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, int error) uint64_t start_sector, block_count; int err; - KASSERT(nsegs == 1, ("invalid number of DMA segments")); + KASSERT(nsegs == 1 || nsegs == 0, + ("ps3cdrom_transfer: invalid number of DMA segments %d", nsegs)); + KASSERT(error == 0, ("ps3cdrom_transfer: DMA error %d", error)); PS3CDROM_ASSERT_LOCKED(sc); @@ -581,6 +583,7 @@ ps3cdrom_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, int error) switch (cdb[0]) { case READ_10: + KASSERT(nsegs == 1, ("ps3cdrom_transfer: no data to read")); start_sector = (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5]; block_count = (cdb[7] << 8) | cdb[8]; @@ -592,6 +595,7 @@ ps3cdrom_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, int error) BUS_DMASYNC_POSTREAD); break; case WRITE_10: + KASSERT(nsegs == 1, ("ps3cdrom_transfer: no data to write")); start_sector = (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5]; block_count = (cdb[7] << 8) | cdb[8]; @@ -622,9 +626,10 @@ ps3cdrom_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, int error) atapi_cmd.proto = NON_DATA_PROTO; } - atapi_cmd.nblocks = atapi_cmd.arglen = segs[0].ds_len; + atapi_cmd.nblocks = atapi_cmd.arglen = + (nsegs == 0) ? 0 : segs[0].ds_len; atapi_cmd.blksize = 1; - atapi_cmd.buf = segs[0].ds_addr; + atapi_cmd.buf = (nsegs == 0) ? 0 : segs[0].ds_addr; if (ccb->ccb_h.flags & CAM_DIR_OUT) bus_dmamap_sync(sc->sc_dmatag, xp->x_dmamap, |
