S_STREAMING
cam->state = S_STREAMING;
if (cam->state == S_STREAMING && test_bit(CF_SG_RESTART, &cam->flags))
if (cam->state != S_STREAMING)
if (cam->state != S_STREAMING)
if (cam->state == S_STREAMING) {
if (cam->state != S_STREAMING || bufno < 0)
if (cam->state != S_STREAMING)