media: atmel: atmel-isc: Fix PM disable depth imbalance in atmel_isc_probe

The pm_runtime_enable will decrease power disable depth.
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().

Fixes: 0a0e265515db ("media: atmel: atmel-isc: split driver into driver base and isc")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
index c5b9563..e941549 100644 (file)
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -562,7 +562,7 @@ static int atmel_isc_probe(struct platform_device *pdev)
        ret = clk_prepare_enable(isc->ispck);
        if (ret) {
                dev_err(dev, "failed to enable ispck: %d\n", ret);
-               goto cleanup_subdev;
+               goto disable_pm;
        }
 
        /* ispck should be greater or equal to hclock */
@@ -580,6 +580,9 @@ static int atmel_isc_probe(struct platform_device *pdev)
 unprepare_clk:
        clk_disable_unprepare(isc->ispck);
 
+disable_pm:
+       pm_runtime_disable(dev);
+
 cleanup_subdev:
        isc_subdev_cleanup(isc);