The 'sense_buffer' of 'struct scsi_cmnd' is always true, but resp->sense_len is only set if there is sense available. Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx> --- drivers/scsi/virtio_scsi.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index eee1bc0..4d2d3b2 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -194,11 +194,10 @@ static void virtscsi_complete_cmd(struct virtio_scsi *vscsi, void *buf) } WARN_ON(resp->sense_len > VIRTIO_SCSI_SENSE_SIZE); - if (sc->sense_buffer) { + if (resp->sense_len) { memcpy(sc->sense_buffer, resp->sense, min_t(u32, resp->sense_len, VIRTIO_SCSI_SENSE_SIZE)); - if (resp->sense_len) - set_driver_byte(sc, DRIVER_SENSE); + set_driver_byte(sc, DRIVER_SENSE); } sc->scsi_done(sc); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html