提交 58e4aeee 编写于 作者: S Stephen Warren 提交者: Dmitry Torokhov

Input: atmel_mxt_ts - fix double free of input device

[Nick Dyer: reworked to move free of input device into separate function
and only call in paths that require it.]
Signed-off-by: NNick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
上级 5715fc76
......@@ -1379,11 +1379,16 @@ static int mxt_get_info(struct mxt_data *data)
return 0;
}
static void mxt_free_object_table(struct mxt_data *data)
static void mxt_free_input_device(struct mxt_data *data)
{
input_unregister_device(data->input_dev);
data->input_dev = NULL;
if (data->input_dev) {
input_unregister_device(data->input_dev);
data->input_dev = NULL;
}
}
static void mxt_free_object_table(struct mxt_data *data)
{
kfree(data->object_table);
data->object_table = NULL;
kfree(data->msg_buf);
......@@ -1962,11 +1967,13 @@ static int mxt_load_fw(struct device *dev, const char *fn)
ret = mxt_lookup_bootloader_address(data, 0);
if (ret)
goto release_firmware;
mxt_free_input_device(data);
mxt_free_object_table(data);
} else {
enable_irq(data->irq);
}
mxt_free_object_table(data);
reinit_completion(&data->bl_completion);
ret = mxt_check_bootloader(data, MXT_WAITING_BOOTLOAD_CMD, false);
......@@ -2215,6 +2222,7 @@ static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id)
return 0;
err_free_object:
mxt_free_input_device(data);
mxt_free_object_table(data);
err_free_irq:
free_irq(client->irq, data);
......@@ -2229,7 +2237,7 @@ static int mxt_remove(struct i2c_client *client)
sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
free_irq(data->irq, data);
input_unregister_device(data->input_dev);
mxt_free_input_device(data);
mxt_free_object_table(data);
kfree(data);
......
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