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authorLaxman Dewangan <ldewangan@nvidia.com>2013-09-26 19:03:51 +0530
committerLee Jones <lee.jones@linaro.org>2013-10-23 16:21:39 +0100
commit5e172d751869ca6756a7276168e11d641dc6b58a (patch)
treed7a2438b1d237896f533ce02856a4975cf0d3553 /drivers/mfd
parent7178347e1c675aefefce09357c988db0a9bf6e96 (diff)
mfd: palmas: Fix resource leak of i2c_dummy devices
Palmas device supports multiple i2c device address and the client for these addressed are created in the driver as i2c_new_dummy(). The new devices are not getting released in error or removal path and so it is causing resource leak. Add the unregister of these newly created dummy devices to avoid resource leaks. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/palmas.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 6aab016f4c37..ae9147873b4a 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -422,7 +422,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
dev_err(palmas->dev,
"can't attach client %d\n", i);
ret = -ENOMEM;
- goto err;
+ goto err_i2c;
}
palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
}
@@ -433,7 +433,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
dev_err(palmas->dev,
"Failed to allocate regmap %d, err: %d\n",
i, ret);
- goto err;
+ goto err_i2c;
}
}
@@ -452,7 +452,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
reg);
if (ret < 0) {
dev_err(palmas->dev, "POLARITY_CTRL updat failed: %d\n", ret);
- goto err;
+ goto err_i2c;
}
/* Change IRQ into clear on read mode for efficiency */
@@ -466,7 +466,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
IRQF_ONESHOT | pdata->irq_flags, 0, &palmas_irq_chip,
&palmas->irq_data);
if (ret < 0)
- goto err;
+ goto err_i2c;
no_irq:
slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
@@ -552,7 +552,6 @@ no_irq:
} else if (pdata->pm_off && !pm_power_off) {
palmas_dev = palmas;
pm_power_off = palmas_power_off;
- return ret;
}
}
@@ -560,16 +559,26 @@ no_irq:
err_irq:
regmap_del_irq_chip(palmas->irq, palmas->irq_data);
-err:
+err_i2c:
+ for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
+ if (palmas->i2c_clients[i])
+ i2c_unregister_device(palmas->i2c_clients[i]);
+ }
return ret;
}
static int palmas_i2c_remove(struct i2c_client *i2c)
{
struct palmas *palmas = i2c_get_clientdata(i2c);
+ int i;
regmap_del_irq_chip(palmas->irq, palmas->irq_data);
+ for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
+ if (palmas->i2c_clients[i])
+ i2c_unregister_device(palmas->i2c_clients[i]);
+ }
+
if (palmas == palmas_dev) {
pm_power_off = NULL;
palmas_dev = NULL;