media: exynos4-is: Fix runtime PM imbalance in fimc_is_probe

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced. For all error
paths after pm_runtime_get_sync(), things are the same.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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-is.c

@@ -871,6 +871,7 @@ static int fimc_is_probe(struct platform_device *pdev)
 err_sd:
 	fimc_is_unregister_subdevs(is);
 err_pm:
+	pm_runtime_put_noidle(dev);
 	if (!pm_runtime_enabled(dev))
 		fimc_is_runtime_suspend(dev);
 err_irq: