Input: lm8323 - fix error handling in lm8323_probe()

We reuse the "i" variable later on so if we goto fail3 or fail4
then "i" will be set to the wrong thing and cause a crash.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index bc696931fed7b127a87afb262f63aa26fc63ac9a..6ecd37a845f2cccafeba630f0e8106f133754699 100644 (file)
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -642,6 +642,7 @@ static int __devinit lm8323_probe(struct i2c_client *client,
        struct lm8323_platform_data *pdata = client->dev.platform_data;
        struct input_dev *idev;
        struct lm8323_chip *lm;
+       int pwm;
        int i, err;
        unsigned long tmo;
        u8 data[2];
@@ -710,8 +711,9 @@ static int __devinit lm8323_probe(struct i2c_client *client,
                goto fail1;
        }
 
-       for (i = 0; i < LM8323_NUM_PWMS; i++) {
-               err = init_pwm(lm, i + 1, &client->dev, pdata->pwm_names[i]);
+       for (pwm = 0; pwm < LM8323_NUM_PWMS; pwm++) {
+               err = init_pwm(lm, pwm + 1, &client->dev,
+                              pdata->pwm_names[pwm]);
                if (err < 0)
                        goto fail2;
        }
@@ -764,9 +766,9 @@ fail4:
 fail3:
        device_remove_file(&client->dev, &dev_attr_disable_kp);
 fail2:
-       while (--i >= 0)
-               if (lm->pwm[i].enabled)
-                       led_classdev_unregister(&lm->pwm[i].cdev);
+       while (--pwm >= 0)
+               if (lm->pwm[pwm].enabled)
+                       led_classdev_unregister(&lm->pwm[pwm].cdev);
 fail1:
        input_free_device(idev);
        kfree(lm);