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| author | Adam Ward <Adam.Ward.opensource@diasemi.com> | 2020-12-02 12:32:47 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-12-02 17:09:00 +0100 |
| commit | 5e191d2e05a4fe098632006bb3afa5e21c8789db (patch) | |
| tree | 522e426572d80ece6ae82204e00287c6f472b764 | |
| parent | regulator: da9121: add interrupt support (diff) | |
| download | linux-5e191d2e05a4fe098632006bb3afa5e21c8789db.tar.xz linux-5e191d2e05a4fe098632006bb3afa5e21c8789db.zip | |
regulator: da9121: Request IRQ directly and free in release function to avoid masking race
Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
Link: https://lore.kernel.org/r/24b2d8b0c3536408369add034221b1141e58bbfc.1606908582.git.Adam.Ward.opensource@diasemi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/regulator/da9121-regulator.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/regulator/da9121-regulator.c b/drivers/regulator/da9121-regulator.c index d9a8a4b8fb3b..3ead6a171d95 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); |