In sioattach the returned values kind of look odd to me. I think it
should be different, like below, ENXIO on error, 0 on success.
Nick
Index: sys/isa/sio.c
===================================================================
RCS file: /home/ncvs/src/sys/isa/sio.c,v
retrieving revision 1.276
diff -u -w -r1.276 sio.c
--- sio.c 1999/12/01 07:38:52 1.276
+++ sio.c 1999/12/05 18:51:10
@@ -991,7 +991,7 @@
if (siosetwater(com, com->it_in.c_ispeed) != 0) {
enable_intr();
free(com, M_DEVBUF);
- return (0);
+ return (ENXIO);
}
enable_intr();
termioschars(&com->it_in);
Index: sys/pc98/pc98/sio.c
===================================================================
RCS file: /home/ncvs/src/sys/pc98/pc98/sio.c,v
retrieving revision 1.113
diff -u -w -r1.113 sio.c
--- sio.c 1999/12/01 13:40:03 1.113
+++ sio.c 1999/12/05 18:51:11
@@ -1577,7 +1577,7 @@
obufsize = 2048;
}
if ((obuf = malloc(obufsize * 2, M_DEVBUF, M_NOWAIT)) == NULL)
- return (0);
+ return ENXIO;
bzero(obuf, obufsize * 2);
#endif
@@ -1660,7 +1660,7 @@
if (siosetwater(com, com->it_in.c_ispeed) != 0) {
enable_intr();
free(com, M_DEVBUF);
- return (0);
+ return ENXIO;
}
enable_intr();
termioschars(&com->it_in);
--
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