Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume()

If imx6ul_tsc_init() fails then we need to clean up the clocks.

I reversed the "if (input_dev->users) {" condition to make the code a
bit simpler.

Fixes: 6cc527b0 ("Input: imx6ul_tsc - propagate the errors")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200905124942.GC183976@mwandaSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/imx6ul_tsc.c

@@ -530,7 +530,9 @@ static int __maybe_unused imx6ul_tsc_resume(struct device *dev)
 
 	mutex_lock(&input_dev->mutex);
 
-	if (input_dev->users) {
+	if (!input_dev->users)
+		goto out;
+
 	retval = clk_prepare_enable(tsc->adc_clk);
 	if (retval)
 		goto out;
@@ -542,8 +544,11 @@ static int __maybe_unused imx6ul_tsc_resume(struct device *dev)
 	}
 
 	retval = imx6ul_tsc_init(tsc);
+	if (retval) {
+		clk_disable_unprepare(tsc->tsc_clk);
+		clk_disable_unprepare(tsc->adc_clk);
+		goto out;
 	}
-
 out:
 	mutex_unlock(&input_dev->mutex);
 	return retval;