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Subject[PATCH 4.8 078/125] power: bq24257: Fix use of uninitialized pointer bq->charger
Date
4.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Georges Savoundararadj <savoundg@gmail.com>

commit 0610735928ee47870e083d5901caa371089216f1 upstream.

bq->charger is initialized in bq24257_power_supply_init.
Therefore, bq24257_power_supply_init should be called before the
registration of the IRQ handler bq24257_irq_handler_thread that calls
power_supply_changed(bq->charger).

Signed-off-by: Georges Savoundararadj <savoundg@gmail.com>
Cc: Aurelien Chanot <chanot.a@gmail.com>
Cc: Andreas Dannenberg <dannenberg@ti.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Fixes: 2219a935963e ("power_supply: Add TI BQ24257 charger driver")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/power/bq24257_charger.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

--- a/drivers/power/bq24257_charger.c
+++ b/drivers/power/bq24257_charger.c
@@ -1068,6 +1068,12 @@ static int bq24257_probe(struct i2c_clie
return ret;
}

+ ret = bq24257_power_supply_init(bq);
+ if (ret < 0) {
+ dev_err(dev, "Failed to register power supply\n");
+ return ret;
+ }
+
ret = devm_request_threaded_irq(dev, client->irq, NULL,
bq24257_irq_handler_thread,
IRQF_TRIGGER_FALLING |
@@ -1078,12 +1084,6 @@ static int bq24257_probe(struct i2c_clie
return ret;
}

- ret = bq24257_power_supply_init(bq);
- if (ret < 0) {
- dev_err(dev, "Failed to register power supply\n");
- return ret;
- }
-
ret = sysfs_create_group(&bq->charger->dev.kobj, &bq24257_attr_group);
if (ret < 0) {
dev_err(dev, "Can't create sysfs entries\n");

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