[bug report] power: supply: max77759: add charger driver

[Dan Carpenter <error27@gmail.com>]

Hello Amit Sunil Dhamne,

Commit 70d7dd27f6dc ("power: supply: max77759: add charger driver")
from Mar 25, 2026 (linux-next), leads to the following Smatch static
checker warning:

	drivers/power/supply/max77759_charger.c:117 get_online()
	info: return a literal instead of 'ret'

drivers/power/supply/max77759_charger.c
    97  static int charger_input_valid(struct max77759_charger *chg)
    98  {
    99          u32 val;
   100          int ret;
   101  
   102          ret = regmap_read(chg->regmap, MAX77759_CHGR_REG_CHG_INT_OK, &val);
   103          if (ret)
   104                  return ret;
   105  
   106          return (val & MAX77759_CHGR_REG_CHG_INT_CHG) &&
   107                  (val & MAX77759_CHGR_REG_CHG_INT_CHGIN);
   108  }
   109  
   110  static int get_online(struct max77759_charger *chg)
   111  {
   112          u32 val;
   113          int ret;
   114  
   115          ret = charger_input_valid(chg);
   116          if (ret <= 0)
   117                  return ret;

This needs some comments.  From the naming, we would assume
charger_input_valid() returns true for valid and false for invalid.

Based on reading the code get_online() return true/false as well
but what does it mean?  false means offline and true means online?
In which sense is this a get_ function?  I'm so confused.

   118  
   119          ret = regmap_read(chg->regmap, MAX77759_CHGR_REG_CHG_DETAILS_02, &val);
   120          if (ret)
   121                  return ret;
   122  
   123          guard(mutex)(&chg->lock);
   124  
   125          return (val & MAX77759_CHGR_REG_CHG_DETAILS_02_CHGIN_STS) &&
   126                  (chg->mode == MAX77759_CHGR_MODE_CHG_BUCK_ON);
   127  }

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regards,
dan carpenter