[v3,24/26] media: mc: Warn about drivers not releasing media device safely

Message ID 20240312103422.216484-25-sakari.ailus@linux.intel.com (mailing list archive)
State New
Series Media device lifetime management |

Commit Message

Sakari Ailus March 12, 2024, 10:34 a.m. UTC
  The media device and associated resources may be released only when its
memory is no longer used. Warn about drivers not doing this, but instead
releasing the resources at driver unbind time.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
 drivers/media/mc/mc-device.c | 3 +++
 1 file changed, 3 insertions(+)


diff --git a/drivers/media/mc/mc-device.c b/drivers/media/mc/mc-device.c
index dcd40fdab29d..15411682466f 100644
--- a/drivers/media/mc/mc-device.c
+++ b/drivers/media/mc/mc-device.c
@@ -822,6 +822,9 @@  int __must_check __media_device_register(struct media_device *mdev,
 		ref = kzalloc(sizeof(*mdev->devnode.ref), GFP_KERNEL);
 		if (!ref)
 			return -ENOMEM;
+		dev_warn(mdev->dev,
+			 "Set mdev release op to safely release resources!\n");
 	/* Register the device node. */