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| author | Javier Martinez Canillas <javier@osg.samsung.com> | 2016-01-27 04:36:38 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-02-04 23:42:07 +0100 |
| commit | 862f9453bd1494f10b059076a3c97c3b90d248aa (patch) | |
| tree | 7471fc0d93fcb79024d7baa2dd0bbc03bc466eb9 /drivers/rtc/rtc-max77686.c | |
| parent | rtc: max77686: Fix max77686_rtc_read_alarm() return value (diff) | |
| download | linux-862f9453bd1494f10b059076a3c97c3b90d248aa.tar.xz linux-862f9453bd1494f10b059076a3c97c3b90d248aa.zip | |
rtc: max77686: Use ARRAY_SIZE() instead of current array length
It is better to use the ARRAY_SIZE() macro instead of the array length
to avoid bugs if the array is later changed and the length not updated.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc/rtc-max77686.c')
| -rw-r--r-- | drivers/rtc/rtc-max77686.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c index 6653c3d11b66..d84a50c9f7f7 100644 --- a/drivers/rtc/rtc-max77686.c +++ b/drivers/rtc/rtc-max77686.c @@ -149,7 +149,7 @@ static int max77686_rtc_read_time(struct device *dev, struct rtc_time *tm) goto out; ret = regmap_bulk_read(info->max77686->rtc_regmap, - MAX77686_RTC_SEC, data, RTC_NR_TIME); + MAX77686_RTC_SEC, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s: fail to read time reg(%d)\n", __func__, ret); goto out; @@ -177,7 +177,7 @@ static int max77686_rtc_set_time(struct device *dev, struct rtc_time *tm) mutex_lock(&info->lock); ret = regmap_bulk_write(info->max77686->rtc_regmap, - MAX77686_RTC_SEC, data, RTC_NR_TIME); + MAX77686_RTC_SEC, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s: fail to write time reg(%d)\n", __func__, ret); @@ -205,7 +205,7 @@ static int max77686_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) goto out; ret = regmap_bulk_read(info->max77686->rtc_regmap, - MAX77686_ALARM1_SEC, data, RTC_NR_TIME); + MAX77686_ALARM1_SEC, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s:%d fail to read alarm reg(%d)\n", __func__, __LINE__, ret); @@ -215,7 +215,7 @@ static int max77686_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) max77686_rtc_data_to_tm(data, &alrm->time, info->rtc_24hr_mode); alrm->enabled = 0; - for (i = 0; i < RTC_NR_TIME; i++) { + for (i = 0; i < ARRAY_SIZE(data); i++) { if (data[i] & ALARM_ENABLE_MASK) { alrm->enabled = 1; break; @@ -252,7 +252,7 @@ static int max77686_rtc_stop_alarm(struct max77686_rtc_info *info) goto out; ret = regmap_bulk_read(info->max77686->rtc_regmap, - MAX77686_ALARM1_SEC, data, RTC_NR_TIME); + MAX77686_ALARM1_SEC, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s: fail to read alarm reg(%d)\n", __func__, ret); @@ -261,11 +261,11 @@ static int max77686_rtc_stop_alarm(struct max77686_rtc_info *info) max77686_rtc_data_to_tm(data, &tm, info->rtc_24hr_mode); - for (i = 0; i < RTC_NR_TIME; i++) + for (i = 0; i < ARRAY_SIZE(data); i++) data[i] &= ~ALARM_ENABLE_MASK; ret = regmap_bulk_write(info->max77686->rtc_regmap, - MAX77686_ALARM1_SEC, data, RTC_NR_TIME); + MAX77686_ALARM1_SEC, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s: fail to write alarm reg(%d)\n", __func__, ret); @@ -291,7 +291,7 @@ static int max77686_rtc_start_alarm(struct max77686_rtc_info *info) goto out; ret = regmap_bulk_read(info->max77686->rtc_regmap, - MAX77686_ALARM1_SEC, data, RTC_NR_TIME); + MAX77686_ALARM1_SEC, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s: fail to read alarm reg(%d)\n", __func__, ret); @@ -312,7 +312,7 @@ static int max77686_rtc_start_alarm(struct max77686_rtc_info *info) data[RTC_DATE] |= (1 << ALARM_ENABLE_SHIFT); ret = regmap_bulk_write(info->max77686->rtc_regmap, - MAX77686_ALARM1_SEC, data, RTC_NR_TIME); + MAX77686_ALARM1_SEC, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s: fail to write alarm reg(%d)\n", __func__, ret); @@ -341,7 +341,7 @@ static int max77686_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) goto out; ret = regmap_bulk_write(info->max77686->rtc_regmap, - MAX77686_ALARM1_SEC, data, RTC_NR_TIME); + MAX77686_ALARM1_SEC, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s: fail to write alarm reg(%d)\n", @@ -406,7 +406,8 @@ static int max77686_rtc_init_reg(struct max77686_rtc_info *info) info->rtc_24hr_mode = 1; - ret = regmap_bulk_write(info->max77686->rtc_regmap, MAX77686_RTC_CONTROLM, data, 2); + ret = regmap_bulk_write(info->max77686->rtc_regmap, + MAX77686_RTC_CONTROLM, data, ARRAY_SIZE(data)); if (ret < 0) { dev_err(info->dev, "%s: fail to write controlm reg(%d)\n", __func__, ret); |