From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: milo.kim@ti.com, sre@kernel.org, anton.vorontsov@linaro.org
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH V2] power: supply: lp8788: Fix an error handling path in 'lp8788_charger_probe()'
Date: Sat, 9 May 2020 10:23:23 +0200 [thread overview]
Message-ID: <20200509082323.223884-1-christophe.jaillet@wanadoo.fr> (raw)
In the probe function, in case of error, resources allocated in
'lp8788_setup_adc_channel()' must be released.
This can be achieved easily by using the devm_ variant of
'iio_channel_get()'.
This has the extra benefit to simplify the remove function and to axe the
'lp8788_release_adc_channel()' function which is now useless.
Fixes: 98a276649358 ("power_supply: Add new lp8788 charger driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
V2: use devm_iio_channel_get instead of iio_channel_get and simplify code
---
drivers/power/supply/lp8788-charger.c | 18 ++----------------
1 file changed, 2 insertions(+), 16 deletions(-)
diff --git a/drivers/power/supply/lp8788-charger.c b/drivers/power/supply/lp8788-charger.c
index 84a206f42a8e..e7931ffb7151 100644
--- a/drivers/power/supply/lp8788-charger.c
+++ b/drivers/power/supply/lp8788-charger.c
@@ -572,27 +572,14 @@ static void lp8788_setup_adc_channel(struct device *dev,
return;
/* ADC channel for battery voltage */
- chan = iio_channel_get(dev, pdata->adc_vbatt);
+ chan = devm_iio_channel_get(dev, pdata->adc_vbatt);
pchg->chan[LP8788_VBATT] = IS_ERR(chan) ? NULL : chan;
/* ADC channel for battery temperature */
- chan = iio_channel_get(dev, pdata->adc_batt_temp);
+ chan = devm_iio_channel_get(dev, pdata->adc_batt_temp);
pchg->chan[LP8788_BATT_TEMP] = IS_ERR(chan) ? NULL : chan;
}
-static void lp8788_release_adc_channel(struct lp8788_charger *pchg)
-{
- int i;
-
- for (i = 0; i < LP8788_NUM_CHG_ADC; i++) {
- if (!pchg->chan[i])
- continue;
-
- iio_channel_release(pchg->chan[i]);
- pchg->chan[i] = NULL;
- }
-}
-
static ssize_t lp8788_show_charger_status(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -735,7 +722,6 @@ static int lp8788_charger_remove(struct platform_device *pdev)
flush_work(&pchg->charger_work);
lp8788_irq_unregister(pdev, pchg);
lp8788_psy_unregister(pchg);
- lp8788_release_adc_channel(pchg);
return 0;
}
--
2.25.1
next reply other threads:[~2020-05-09 8:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-09 8:23 Christophe JAILLET [this message]
2020-05-09 23:43 ` [PATCH V2] power: supply: lp8788: Fix an error handling path in 'lp8788_charger_probe()' Sebastian Reichel
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