[src/trunk]: src/sys/dev/i2c A fan reading of 0xff is also invalid (observed ...

[jdc <jdc%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a35cb9c05638
branches:  trunk
changeset: 790913:a35cb9c05638
user:      jdc <jdc%NetBSD.org@localhost>
date:      Sat Oct 26 18:28:15 2013 +0000

description:
A fan reading of 0xff is also invalid (observed on AlphaServer DS20L).

diffstat:

 sys/dev/i2c/lm87.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r 6fb459e9b5ed -r a35cb9c05638 sys/dev/i2c/lm87.c
--- a/sys/dev/i2c/lm87.c        Sat Oct 26 18:07:52 2013 +0000
+++ b/sys/dev/i2c/lm87.c        Sat Oct 26 18:28:15 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lm87.c,v 1.2 2013/10/18 15:16:08 jdc Exp $     */
+/*     $NetBSD: lm87.c,v 1.3 2013/10/26 18:28:15 jdc Exp $     */
 /*     $OpenBSD: lm87.c,v 1.20 2008/11/10 05:19:48 cnst Exp $  */
 
 /*
@@ -18,7 +18,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lm87.c,v 1.2 2013/10/18 15:16:08 jdc Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lm87.c,v 1.3 2013/10/26 18:28:15 jdc Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -365,7 +365,7 @@
                        break;
                }
                tmp = data * sc->sc_fan1_div;
-               if (tmp == 0)
+               if (tmp == 0 || tmp == 0xff)
                        edata->state = ENVSYS_SINVALID;
                else
                        edata->value_cur = 1350000 / tmp;
@@ -378,7 +378,7 @@
                        break;
                }
                tmp = data * sc->sc_fan2_div;
-               if (tmp == 0)
+               if (tmp == 0 || tmp == 0xff)
                        edata->state = ENVSYS_SINVALID;
                else
                        edata->value_cur = 1350000 / tmp;