[PATCH V2 1/1] regulator: da9121: Request IRQ directly and free in release function to avoid masking race

[Adam Ward]

Signed-off-by: Adam Ward <adam.ward.opensou...@diasemi.com>
---
 drivers/regulator/da9121-regulator.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/da9121-regulator.c 
b/drivers/regulator/da9121-regulator.c
index d9a8a4b..3ead6a1 100644
--- a/drivers/regulator/da9121-regulator.c
+++ b/drivers/regulator/da9121-regulator.c
@@ -945,8 +945,7 @@ static int da9121_config_irq(struct i2c_client *i2c,
 
                chip->passive_delay = p_delay;
 
-               ret = devm_request_threaded_irq(chip->dev,
-                                       chip->chip_irq, NULL,
+               ret = request_threaded_irq(chip->chip_irq, NULL,
                                        da9121_irq_handler,
                                        IRQF_TRIGGER_LOW|IRQF_ONESHOT,
                                        "da9121", chip);
@@ -960,7 +959,7 @@ static int da9121_config_irq(struct i2c_client *i2c,
                if (ret != 0) {
                        dev_err(chip->dev, "Failed to set IRQ masks: %d\n",
                                ret);
-                       goto error;
+                       goto regmap_error;
                }
 
                INIT_DELAYED_WORK(&chip->work, da9121_status_poll_on);
@@ -969,6 +968,9 @@ static int da9121_config_irq(struct i2c_client *i2c,
        }
 error:
        return ret;
+regmap_error:
+       free_irq(chip->chip_irq, chip);
+       return ret;
 }
 
 static const struct of_device_id da9121_dt_ids[] = {
@@ -1036,6 +1038,7 @@ static int da9121_i2c_remove(struct i2c_client *i2c)
        const int mask_all[4] = { 0xFF, 0xFF, 0xFF, 0xFF };
        int ret = 0;
 
+       free_irq(chip->chip_irq, chip);
        cancel_delayed_work_sync(&chip->work);
 
        ret = regmap_bulk_write(chip->regmap, DA9121_REG_SYS_MASK_0, mask_all, 
4);
-- 
1.9.1