iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

power: supply: bq24190_charger: Uniform pm_runtime_get() failure handling

Browse Source 
On pm_runtime_get() failure, always emit an error message.
Prevent unbalanced pm_runtime_get by calling:
  pm_runtime_put_noidle() in irq handler
  pm_runtime_put_sync() on any probe() failure
Rename probe() out labels instead of renumbering them.

Fixes: 13d6fa8447fa ("power: bq24190_charger: Use PM runtime autosuspend")
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Liam Breck 2017-04-11 04:59:56 -07:00 committed by Sebastian Reichel
parent 03add17fe3
commit e3ebc381a9
1 changed files with 19 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
drivers/power/supply/bq24190_charger.c
View File

@ -1280,12 +1280,13 @@ static void bq24190_check_status(struct bq24190_dev_info *bdi)
static irqreturn_t bq24190_irq_handler_thread(int irq, void *data)
{
struct bq24190_dev_info *bdi = data;
int ret;
int error;
bdi->irq_event = true;
ret = pm_runtime_get_sync(bdi->dev);
if (ret < 0) {
dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", ret);
error = pm_runtime_get_sync(bdi->dev);
if (error < 0) {
dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", error);
pm_runtime_put_noidle(bdi->dev);
return IRQ_NONE;
}
bq24190_check_status(bdi);
@ -1453,13 +1454,15 @@ static int bq24190_probe(struct i2c_client *client,
pm_runtime_use_autosuspend(dev);
pm_runtime_set_autosuspend_delay(dev, 600);
ret = pm_runtime_get_sync(dev);
if (ret < 0)
goto out1;
if (ret < 0) {
dev_err(dev, "pm_runtime_get failed: %i\n", ret);
goto out_pmrt;
}
ret = bq24190_hw_init(bdi);
if (ret < 0) {
dev_err(dev, "Hardware init failed\n");
goto out2;
goto out_pmrt;
}
charger_cfg.drv_data = bdi;
@ -1470,7 +1473,7 @@ static int bq24190_probe(struct i2c_client *client,
if (IS_ERR(bdi->charger)) {
dev_err(dev, "Can't register charger\n");
ret = PTR_ERR(bdi->charger);
goto out2;
goto out_pmrt;
}
battery_cfg.drv_data = bdi;
@ -1479,13 +1482,13 @@ static int bq24190_probe(struct i2c_client *client,
if (IS_ERR(bdi->battery)) {
dev_err(dev, "Can't register battery\n");
ret = PTR_ERR(bdi->battery);
goto out3;
goto out_charger;
}
ret = bq24190_sysfs_create_group(bdi);
if (ret) {
dev_err(dev, "Can't create sysfs entries\n");
goto out4;
goto out_battery;
}
bdi->initialized = true;
@ -1496,7 +1499,7 @@ static int bq24190_probe(struct i2c_client *client,
"bq24190-charger", bdi);
if (ret < 0) {
dev_err(dev, "Can't set up irq handler\n");
goto out5;
goto out_sysfs;
}
if (bdi->extcon) {
@ -1506,7 +1509,7 @@ static int bq24190_probe(struct i2c_client *client,
&bdi->extcon_nb);
if (ret) {
dev_err(dev, "Can't register extcon\n");
goto out5;
goto out_sysfs;
}
/* Sync initial cable state */
@ -1520,19 +1523,17 @@ static int bq24190_probe(struct i2c_client *client,
return 0;
out5:
out_sysfs:
bq24190_sysfs_remove_group(bdi);
out4:
out_battery:
power_supply_unregister(bdi->battery);
out3:
out_charger:
power_supply_unregister(bdi->charger);
out2:
out_pmrt:
pm_runtime_put_sync(dev);
out1:
pm_runtime_dont_use_autosuspend(dev);
pm_runtime_disable(dev);
return ret;