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authorAdam Ward <Adam.Ward.opensource@diasemi.com>2020-12-02 11:32:47 +0000
committerMark Brown <broonie@kernel.org>2020-12-02 16:09:00 +0000
commit5e191d2e05a4fe098632006bb3afa5e21c8789db (patch)
tree522e426572d80ece6ae82204e00287c6f472b764 /drivers/regulator
parent40bb5b02ff10f6b68925850e7dedaeec532abb88 (diff)
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>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/da9121-regulator.c9
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);