usleep() seems to crash rtlinux when called from non-rt priority

diff --git a/include/linux/comedi_rt.h b/include/linux/comedi_rt.h
index 9609f8848ed3638e905f43435e32c07d0563c42d..e8e9a631cbc861cef1b2a555fdd9267d5f95899d 100644 (file)
--- a/include/linux/comedi_rt.h
+++ b/include/linux/comedi_rt.h
@@ -133,8 +133,6 @@ static inline void comedi_udelay( unsigned int usec )
 #if defined(CONFIG_COMEDI_RTAI)
        static const int nanosec_per_usec = 1000;
        rt_busy_sleep( usec * nanosec_per_usec );
-#elif defined(CONFIG_COMEDI_RTL)
-       usleep( usec );
 #else
        udelay( usec );
 #endif