tsleep_nsec(9) for wsdisplay(4)

[Frederic Cambus]

Hi tech@,

Here is a diff to convert all tsleep(9) calls in wsdisplay(4)
to tsleep_nsec(9).

Comments? OK?

Index: sys/dev/wscons/wsdisplay.c
===================================================================
RCS file: /cvs/src/sys/dev/wscons/wsdisplay.c,v
retrieving revision 1.133
diff -u -p -r1.133 wsdisplay.c
--- sys/dev/wscons/wsdisplay.c  1 Jul 2019 19:38:40 -0000       1.133
+++ sys/dev/wscons/wsdisplay.c  8 Oct 2019 14:40:56 -0000
@@ -1830,7 +1830,8 @@ wsdisplay_switch(struct device *dev, int
        s = spltty();
 
        while (sc->sc_resumescreen != WSDISPLAY_NULLSCREEN && res == 0)
-               res = tsleep(&sc->sc_resumescreen, PCATCH, "wsrestore", 0);
+               res = tsleep_nsec(&sc->sc_resumescreen, PCATCH, "wsrestore",
+                   INFSLP);
        if (res) {
                splx(s);
                return (res);
@@ -1980,7 +1981,7 @@ wsscreen_switchwait(struct wsdisplay_sof
        if (no == WSDISPLAY_NULLSCREEN) {
                s = spltty();
                while (sc->sc_focus && res == 0) {
-                       res = tsleep(sc, PCATCH, "wswait", 0);
+                       res = tsleep_nsec(sc, PCATCH, "wswait", INFSLP);
                }
                splx(s);
                return (res);
@@ -1995,7 +1996,7 @@ wsscreen_switchwait(struct wsdisplay_sof
        s = spltty();
        if (scr != sc->sc_focus) {
                scr->scr_flags |= SCR_WAITACTIVE;
-               res = tsleep(scr, PCATCH, "wswait2", 0);
+               res = tsleep_nsec(scr, PCATCH, "wswait2", INFSLP);
                if (scr != sc->sc_scr[no])
                        res = ENXIO; /* disappeared in the meantime */
                else