i2c: xiic: Make sure to disable clock on .remove()

If for whatever reasons pm_runtime_resume_and_get() failed, .remove() is
exited early, the clock isn't freed and runtime PM state isn't reset.

The right thing to do however is to free all resources that don't need
HW access after a problem with runtime PM. Also issue a warning in that
case and return 0 to suppress a less helpful warning by the driver core.

Signed-off-by: Uwe Kleine-König <[email protected]>
Acked-by: Michal Simek <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>

Author: Uwe Kleine-König

drivers/i2c/busses/i2c-xiic.c

@@ -858,11 +858,14 @@ static int xiic_i2c_remove(struct platform_device *pdev)
 	/* remove adapter & data */
 	i2c_del_adapter(&i2c->adap);
 
-	ret = pm_runtime_resume_and_get(i2c->dev);
+	ret = pm_runtime_get_sync(i2c->dev);
+
 	if (ret < 0)
-		return ret;
+		dev_warn(&pdev->dev, "Failed to activate device for removal (%pe)\n",
+			 ERR_PTR(ret));
+	else
+		xiic_deinit(i2c);
 
-	xiic_deinit(i2c);
 	pm_runtime_put_sync(i2c->dev);
 	clk_disable_unprepare(i2c->clk);
 	pm_runtime_disable(&pdev->dev);