[PATCH v3 07/17] media: rkisp1: Simplify rkisp1_entities_register() error path

Laurent Pinchart
2022-03-19T16:31:47Z

Now that all the unregistration functions are safe to call on
non-registered entities, the error path in rkisp1_entities_register()
can be simplified. Factor out the unregistration to a separate function
to share code with rkisp1_remove().

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
---
.../platform/rockchip/rkisp1/rkisp1-dev.c | 40 +++++++++----------
1 file changed, 19 insertions(+), 21 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 3f5cfa7eb937..f8b2573aa9da 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -346,48 +346,50 @@ static const struct dev_pm_ops rkisp1_pm_ops = {
* Core
*/

+static void rkisp1_entities_unregister(struct rkisp1_device *rkisp1)
+{
+ rkisp1_params_unregister(rkisp1);
+ rkisp1_stats_unregister(rkisp1);
+ rkisp1_capture_devs_unregister(rkisp1);
+ rkisp1_resizer_devs_unregister(rkisp1);
+ rkisp1_isp_unregister(rkisp1);
+}
+
static int rkisp1_entities_register(struct rkisp1_device *rkisp1)
{
int ret;

ret = rkisp1_isp_register(rkisp1);
if (ret)
- return ret;
+ goto error;

ret = rkisp1_resizer_devs_register(rkisp1);
if (ret)
- goto err_unreg_isp_subdev;
+ goto error;

ret = rkisp1_capture_devs_register(rkisp1);
if (ret)
- goto err_unreg_resizer_devs;
+ goto error;

ret = rkisp1_stats_register(rkisp1);
if (ret)
- goto err_unreg_capture_devs;
+ goto error;

ret = rkisp1_params_register(rkisp1);
if (ret)
- goto err_unreg_stats;
+ goto error;

ret = rkisp1_subdev_notifier(rkisp1);
if (ret) {
dev_err(rkisp1->dev,
"Failed to register subdev notifier(%d)\n", ret);
- goto err_unreg_params;
+ goto error;
}

return 0;
-err_unreg_params:
- rkisp1_params_unregister(rkisp1);
-err_unreg_stats:
- rkisp1_stats_unregister(rkisp1);
-err_unreg_capture_devs:
- rkisp1_capture_devs_unregister(rkisp1);
-err_unreg_resizer_devs:
- rkisp1_resizer_devs_unregister(rkisp1);
-err_unreg_isp_subdev:
- rkisp1_isp_unregister(rkisp1);
+
+error:
+ rkisp1_entities_unregister(rkisp1);
return ret;
}

@@ -583,11 +585,7 @@ static int rkisp1_remove(struct platform_device *pdev)
v4l2_async_nf_unregister(&rkisp1->notifier);
v4l2_async_nf_cleanup(&rkisp1->notifier);

- rkisp1_params_unregister(rkisp1);
- rkisp1_stats_unregister(rkisp1);
- rkisp1_capture_devs_unregister(rkisp1);
- rkisp1_resizer_devs_unregister(rkisp1);
- rkisp1_isp_unregister(rkisp1);
+ rkisp1_entities_unregister(rkisp1);

media_device_unregister(&rkisp1->media_dev);
v4l2_device_unregister(&rkisp1->v4l2_dev);