[PATCH v2 57/68] drm/vc4: vec: Switch to DRM-managed encoder initialization

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The current code will call drm_encoder_cleanup() when the device is
unbound. However, by then, there might still be some references held to
that encoder, including by the userspace that might still have the DRM
device open.

Let's switch to a DRM-managed initialization to clean up after ourselves
only once the DRM device has been last closed.

Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
 drivers/gpu/drm/vc4/vc4_vec.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index 2e9dc09fc6f0..518b66bcc0b5 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -528,12 +528,18 @@ static int vc4_vec_bind(struct device *dev, struct device *master, void *data)
 
 	pm_runtime_enable(dev);
 
-	drm_simple_encoder_init(drm, &vec->encoder.base, DRM_MODE_ENCODER_TVDAC);
+	ret = drmm_encoder_init(drm, &vec->encoder.base,
+				NULL,
+				DRM_MODE_ENCODER_TVDAC,
+				NULL);
+	if (ret)
+		goto err_put_runtime_pm;
+
 	drm_encoder_helper_add(&vec->encoder.base, &vc4_vec_encoder_helper_funcs);
 
 	ret = vc4_vec_connector_init(drm, vec);
 	if (ret)
-		goto err_destroy_encoder;
+		goto err_put_runtime_pm;
 
 	dev_set_drvdata(dev, vec);
 
@@ -541,8 +547,7 @@ static int vc4_vec_bind(struct device *dev, struct device *master, void *data)
 
 	return 0;
 
-err_destroy_encoder:
-	drm_encoder_cleanup(&vec->encoder.base);
+err_put_runtime_pm:
 	pm_runtime_disable(dev);
 
 	return ret;
@@ -554,7 +559,6 @@ static void vc4_vec_unbind(struct device *dev, struct device *master,
 	struct vc4_vec *vec = dev_get_drvdata(dev);
 
 	drm_connector_cleanup(&vec->connector);
-	drm_encoder_cleanup(&vec->encoder.base);
 	pm_runtime_disable(dev);
 }
 
-- 
2.36.1




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux