rtc: rv3028: Fix codestyle errors

Compiler warnings：

drivers/rtc/rtc-rv3028.c: In function 'rv3028_param_set':
drivers/rtc/rtc-rv3028.c:559:20: warning: statement will never be executed [-Wswitch-unreachable]
  559 |                 u8 mode;
      |                    ^~~~
drivers/rtc/rtc-rv3028.c: In function 'rv3028_param_get':
drivers/rtc/rtc-rv3028.c:526:21: warning: statement will never be executed [-Wswitch-unreachable]
  526 |                 u32 value;
      |                     ^~~~~

Fix it by moving the variable declaration to the beginning of the function.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Ke Sun <sunke@kylinos.cn>
Link: https://lore.kernel.org/r/20221008071321.1799971-1-sunke@kylinos.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c
index cdc623b3e365bb1b21f6ba477947ff35a54d99cb..dd170e3efd83ed6da15ca91feefc2e39829df923 100644 (file)
--- a/drivers/rtc/rtc-rv3028.c
+++ b/drivers/rtc/rtc-rv3028.c
@@ -521,10 +521,9 @@ static int rv3028_param_get(struct device *dev, struct rtc_param *param)
 {
        struct rv3028_data *rv3028 = dev_get_drvdata(dev);
        int ret;
+       u32 value;
 
        switch(param->param) {
-               u32 value;
-
        case RTC_PARAM_BACKUP_SWITCH_MODE:
                ret = regmap_read(rv3028->regmap, RV3028_BACKUP, &value);
                if (ret < 0)
@@ -554,9 +553,9 @@ static int rv3028_param_get(struct device *dev, struct rtc_param *param)
 static int rv3028_param_set(struct device *dev, struct rtc_param *param)
 {
        struct rv3028_data *rv3028 = dev_get_drvdata(dev);
+       u8 mode;
 
        switch(param->param) {
-               u8 mode;
        case RTC_PARAM_BACKUP_SWITCH_MODE:
                switch (param->uvalue) {
                case RTC_BSM_DISABLED: