diff options
| -rw-r--r-- | drivers/rtc/sysfs.c | 46 |
1 files changed, 21 insertions, 25 deletions
diff --git a/drivers/rtc/sysfs.c b/drivers/rtc/sysfs.c index e3062c4d3f2c..86d1140b4f39 100644 --- a/drivers/rtc/sysfs.c +++ b/drivers/rtc/sysfs.c @@ -24,8 +24,8 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%s %s\n", dev_driver_string(dev->parent), - dev_name(dev->parent)); + return sysfs_emit(buf, "%s %s\n", dev_driver_string(dev->parent), + dev_name(dev->parent)); } static DEVICE_ATTR_RO(name); @@ -39,7 +39,7 @@ date_show(struct device *dev, struct device_attribute *attr, char *buf) if (retval) return retval; - return sprintf(buf, "%ptRd\n", &tm); + return sysfs_emit(buf, "%ptRd\n", &tm); } static DEVICE_ATTR_RO(date); @@ -53,7 +53,7 @@ time_show(struct device *dev, struct device_attribute *attr, char *buf) if (retval) return retval; - return sprintf(buf, "%ptRt\n", &tm); + return sysfs_emit(buf, "%ptRt\n", &tm); } static DEVICE_ATTR_RO(time); @@ -64,21 +64,17 @@ since_epoch_show(struct device *dev, struct device_attribute *attr, char *buf) struct rtc_time tm; retval = rtc_read_time(to_rtc_device(dev), &tm); - if (retval == 0) { - time64_t time; - - time = rtc_tm_to_time64(&tm); - retval = sprintf(buf, "%lld\n", time); - } + if (retval) + return retval; - return retval; + return sysfs_emit(buf, "%lld\n", rtc_tm_to_time64(&tm)); } static DEVICE_ATTR_RO(since_epoch); static ssize_t max_user_freq_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%d\n", to_rtc_device(dev)->max_user_freq); + return sysfs_emit(buf, "%d\n", to_rtc_device(dev)->max_user_freq); } static ssize_t @@ -118,9 +114,9 @@ hctosys_show(struct device *dev, struct device_attribute *attr, char *buf) if (rtc_hctosys_ret == 0 && strcmp(dev_name(&to_rtc_device(dev)->dev), CONFIG_RTC_HCTOSYS_DEVICE) == 0) - return sprintf(buf, "1\n"); + return sysfs_emit(buf, "1\n"); #endif - return sprintf(buf, "0\n"); + return sysfs_emit(buf, "0\n"); } static DEVICE_ATTR_RO(hctosys); @@ -128,7 +124,6 @@ static ssize_t wakealarm_show(struct device *dev, struct device_attribute *attr, char *buf) { ssize_t retval; - time64_t alarm; struct rtc_wkalrm alm; /* Don't show disabled alarms. For uniformity, RTC alarms are @@ -140,12 +135,13 @@ wakealarm_show(struct device *dev, struct device_attribute *attr, char *buf) * alarms after they trigger, to ensure one-shot semantics. */ retval = rtc_read_alarm(to_rtc_device(dev), &alm); - if (retval == 0 && alm.enabled) { - alarm = rtc_tm_to_time64(&alm.time); - retval = sprintf(buf, "%lld\n", alarm); - } + if (retval) + return retval; + + if (alm.enabled) + return sysfs_emit(buf, "%lld\n", rtc_tm_to_time64(&alm.time)); - return retval; + return 0; } static ssize_t @@ -222,10 +218,10 @@ offset_show(struct device *dev, struct device_attribute *attr, char *buf) long offset; retval = rtc_read_offset(to_rtc_device(dev), &offset); - if (retval == 0) - retval = sprintf(buf, "%ld\n", offset); + if (retval) + return retval; - return retval; + return sysfs_emit(buf, "%ld\n", offset); } static ssize_t @@ -246,8 +242,8 @@ static DEVICE_ATTR_RW(offset); static ssize_t range_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "[%lld,%llu]\n", to_rtc_device(dev)->range_min, - to_rtc_device(dev)->range_max); + return sysfs_emit(buf, "[%lld,%llu]\n", to_rtc_device(dev)->range_min, + to_rtc_device(dev)->range_max); } static DEVICE_ATTR_RO(range); |