[src/trunk]: src/sys/kern - In todr_gettime(), in the todr_gettime_ymdhms, pr...

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

details:   https://anonhg.NetBSD.org/src/rev/cf77c314bf84
branches:  trunk
changeset: 968124:cf77c314bf84
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Fri Jan 03 01:24:48 2020 +0000

description:
- In todr_gettime(), in the todr_gettime_ymdhms, pre-zero the clock_ymdhms
  struct before asking the back-end to fill it in.
- Tidy up todr_settime() a teensy bit.

diffstat:

 sys/kern/kern_todr.c |  21 ++++++++++-----------
 1 files changed, 10 insertions(+), 11 deletions(-)

diffs (71 lines):

diff -r be4b3f89446b -r cf77c314bf84 sys/kern/kern_todr.c
--- a/sys/kern/kern_todr.c      Fri Jan 03 01:17:29 2020 +0000
+++ b/sys/kern/kern_todr.c      Fri Jan 03 01:24:48 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_todr.c,v 1.45 2020/01/01 23:15:24 thorpej Exp $   */
+/*     $NetBSD: kern_todr.c,v 1.46 2020/01/03 01:24:48 thorpej Exp $   */
 
 /*-
  * Copyright (c) 2020 The NetBSD Foundation, Inc.
@@ -70,7 +70,7 @@
 #include "opt_todr.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_todr.c,v 1.45 2020/01/01 23:15:24 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_todr.c,v 1.46 2020/01/03 01:24:48 thorpej Exp $");
 
 #include <sys/param.h>
 #include <sys/kernel.h>
@@ -397,8 +397,7 @@
 static int
 todr_gettime(todr_chip_handle_t tch, struct timeval *tvp)
 {
-       struct clock_ymdhms     dt;
-       int                     rv;
+       int rv;
 
        /*
         * Write-enable is used even when reading the TODR because
@@ -418,6 +417,7 @@
                todr_debug("TODR-GET-SECS", rv, NULL, tvp);
                return rv;
        } else if (tch->todr_gettime_ymdhms) {
+               struct clock_ymdhms dt = { 0 };
                ENABLE_TODR_WRITES();
                rv = tch->todr_gettime_ymdhms(tch, &dt);
                DISABLE_TODR_WRITES();
@@ -455,12 +455,10 @@
 static int
 todr_settime(todr_chip_handle_t tch, struct timeval *tvp)
 {
-       struct clock_ymdhms     dt;
-       int                     rv;
+       int rv;
 
        if (tch->todr_settime) {
-               /* See comments above in gettime why this is ifdef'd */
-               struct timeval  copy = *tvp;
+               struct timeval copy = *tvp;
                copy.tv_sec -= rtc_offset * 60;
                ENABLE_TODR_WRITES();
                rv = tch->todr_settime(tch, &copy);
@@ -468,7 +466,8 @@
                todr_debug("TODR-SET-SECS", rv, NULL, tvp);
                return rv;
        } else if (tch->todr_settime_ymdhms) {
-               time_t  sec = tvp->tv_sec - rtc_offset * 60;
+               struct clock_ymdhms dt;
+               time_t sec = tvp->tv_sec - rtc_offset * 60;
                if (tvp->tv_usec >= 500000)
                        sec++;
                clock_secs_to_ymdhms(sec, &dt);
@@ -477,7 +476,7 @@
                DISABLE_TODR_WRITES();
                todr_debug("TODR-SET-YMDHMS", rv, &dt, NULL);
                return rv;
-       } else {
-               return ENXIO;
        }
+
+       return ENXIO;
 }