thermal: imx8mm: Disable the clock on probe failure

Prior to returning an error in probe, disable the previously
enabled clock.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201202232448.2692-2-festevam@gmail.com

drivers/thermal/imx8mm_thermal.c

@@ -170,7 +170,7 @@ static int imx8mm_tmu_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"failed to register thermal zone sensor[%d]: %d\n",
 				i, ret);
-			return ret;
+			goto disable_clk;
 		}
 		tmu->sensors[i].hw_id = i;
 	}
@@ -185,6 +185,10 @@ static int imx8mm_tmu_probe(struct platform_device *pdev)
 	imx8mm_tmu_enable(tmu, true);
 
 	return 0;
+
+disable_clk:
+	clk_disable_unprepare(tmu->clk);
+	return ret;
 }
 
 static int imx8mm_tmu_remove(struct platform_device *pdev)