rtc: sd2405al: drop needless struct sd2405al::rtc member

The memory pointed to by the ::rtc member is managed via devres, and
no code in this driver uses it past _probe().

We can drop it from the structure and just use a local temporary
variable, reducing runtime memory consumption by a few bytes.

Tested-by: Tóth János <gomba007@gmail.com>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-13-d4689a71668c@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-sd2405al.c b/drivers/rtc/rtc-sd2405al.c
index d2568c3e387659dfea598cd2ef6bddc5c076cbb9..00c3033e8079b5f10aaabcc7a1d3f19771263a02 100644 (file)
--- a/drivers/rtc/rtc-sd2405al.c
+++ b/drivers/rtc/rtc-sd2405al.c
@@ -42,7 +42,6 @@
 
 struct sd2405al {
        struct device           *dev;
-       struct rtc_device       *rtc;
        struct regmap           *regmap;
 };
 
@@ -167,6 +166,7 @@ static const struct regmap_config sd2405al_regmap_conf = {
 static int sd2405al_probe(struct i2c_client *client)
 {
        struct sd2405al *sd2405al;
+       struct rtc_device *rtc;
        int ret;
 
        if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
@@ -182,17 +182,17 @@ static int sd2405al_probe(struct i2c_client *client)
        if (IS_ERR(sd2405al->regmap))
                return PTR_ERR(sd2405al->regmap);
 
-       sd2405al->rtc = devm_rtc_allocate_device(&client->dev);
-       if (IS_ERR(sd2405al->rtc))
-               return PTR_ERR(sd2405al->rtc);
+       rtc = devm_rtc_allocate_device(&client->dev);
+       if (IS_ERR(rtc))
+               return PTR_ERR(rtc);
 
-       sd2405al->rtc->ops = &sd2405al_rtc_ops;
-       sd2405al->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
-       sd2405al->rtc->range_max = RTC_TIMESTAMP_END_2099;
+       rtc->ops = &sd2405al_rtc_ops;
+       rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
+       rtc->range_max = RTC_TIMESTAMP_END_2099;
 
        dev_set_drvdata(&client->dev, sd2405al);
 
-       ret = devm_rtc_register_device(sd2405al->rtc);
+       ret = devm_rtc_register_device(rtc);
        if (ret < 0)
                return ret;