isv_retrace_wait
if (speed < 1 && (rc = isv_retrace_wait(ir, &state, &end)) != 0)
if ((rc = isv_retrace_wait(ir, &state, &end)) != 0)
if (isv_retrace_wait(ir, &state, &end) != 0)
static int isv_retrace_wait(struct isv_regs *, int *,