media: exynos4-is: add missed clk_disable_unprepare in remove

This driver forgets to disable and unprepare clock when remove.
Add a call to clk_disable_unprepare() to fix it.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/exynos4-is/fimc-lite.c

@@ -1614,6 +1614,9 @@ static int fimc_lite_remove(struct platform_device *pdev)
 	struct fimc_lite *fimc = platform_get_drvdata(pdev);
 	struct device *dev = &pdev->dev;
 
+	if (!pm_runtime_enabled(dev))
+		clk_disable_unprepare(fimc->clock);
+
 	pm_runtime_disable(dev);
 	pm_runtime_set_suspended(dev);
 	fimc_lite_unregister_capture_subdev(fimc);