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rtc: abx80x: solve race condition 

There is a race condition that can happen if abx80x_probe() fails after the
rtc registration succeeded. Solve that by moving the registration at the
end of the probe function.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Alexandre Belloni 2017-10-13 00:04:47 +02:00
parent 9360a6a818
commit 9da32ba64d
1 changed files with 5 additions and 5 deletions
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10
drivers/rtc/rtc-abx80x.c
View File

@ -620,10 +620,6 @@ static int abx80x_probe(struct i2c_client *client,
rtc->ops = &abx80x_rtc_ops; rtc->ops = &abx80x_rtc_ops;
err = rtc_register_device(rtc);
if (err)
return err;
i2c_set_clientdata(client, rtc); i2c_set_clientdata(client, rtc);
if (client->irq > 0) { if (client->irq > 0) {
@ -650,10 +646,14 @@ static int abx80x_probe(struct i2c_client *client,
err = devm_add_action_or_reset(&client->dev, err = devm_add_action_or_reset(&client->dev,
rtc_calib_remove_sysfs_group, rtc_calib_remove_sysfs_group,
&client->dev); &client->dev);
if (err) if (err) {
dev_err(&client->dev, dev_err(&client->dev,
"Failed to add sysfs cleanup action: %d\n", "Failed to add sysfs cleanup action: %d\n",
err); err);
return err;
}
err = rtc_register_device(rtc);
return err; return err;
} }