i2c: davinci: fix PM disable depth imbalance in davinci_i2c_probe

The pm_runtime_enable will increase power disable depth. Thus a
pairing decrement is needed on the error handling path to keep
it balanced according to context.

Fixes: 17f88151ff190 ("i2c: davinci: Add PM Runtime Support")
Signed-off-by: Zhang Qilong <[e-mail]>
Reviewed-by: Bartosz Golaszewski <[e-mail]>
Signed-off-by: Wolfram Sang <[e-mail]>

drivers/i2c/busses/i2c-davinci.c

···
 	r = pm_runtime_resume_and_get(dev->dev);
 	if (r < 0) {
 		dev_err(dev->dev, "failed to runtime_get device: %d\n", r);
-		return r;
+		goto err_pm;
 	}
 
 	i2c_davinci_init(dev);
···
 err_unuse_clocks:
 	pm_runtime_dont_use_autosuspend(dev->dev);
 	pm_runtime_put_sync(dev->dev);
+err_pm:
 	pm_runtime_disable(dev->dev);
 
 	return r;