Hello Bjorn,
On 1/17/22 11:55 PM, Bjorn Andersson wrote:
On Tue 07 Dec 02:08 CST 2021, Arnaud Pouliquen wrote:
diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c
[..]
-static void rpmsg_ctrldev_release_device(struct device *dev)
-{
- struct rpmsg_ctrldev *ctrldev = dev_to_ctrldev(dev);
-
- ida_simple_remove(&rpmsg_ctrl_ida, dev->id);
- ida_simple_remove(&rpmsg_minor_ida, MINOR(dev->devt));
- cdev_del(&ctrldev->cdev);
- kfree(ctrldev);
-}
-
-static int rpmsg_chrdev_probe(struct rpmsg_device *rpdev)
-{
- struct rpmsg_ctrldev *ctrldev;
- struct device *dev;
- int ret;
-
- ctrldev = kzalloc(sizeof(*ctrldev), GFP_KERNEL);
- if (!ctrldev)
- return -ENOMEM;
-
- ctrldev->rpdev = rpdev;
-
- dev = &ctrldev->dev;
- device_initialize(dev);
- dev->parent = &rpdev->dev;
- dev->class = rpmsg_class;
-
- cdev_init(&ctrldev->cdev, &rpmsg_ctrldev_fops);
- ctrldev->cdev.owner = THIS_MODULE;
-
- ret = ida_simple_get(&rpmsg_minor_ida, 0, RPMSG_DEV_MAX, GFP_KERNEL);
- if (ret < 0)
- goto free_ctrldev;
- dev->devt = MKDEV(MAJOR(rpmsg_major), ret);
-
- ret = ida_simple_get(&rpmsg_ctrl_ida, 0, 0, GFP_KERNEL);
- if (ret < 0)
- goto free_minor_ida;
- dev->id = ret;
- dev_set_name(&ctrldev->dev, "rpmsg_ctrl%d", ret);
-
- ret = cdev_add(&ctrldev->cdev, dev->devt, 1);
This turns out to be incomplete and the cdev_del above is in the wrong
place. This, and the same for eptdev, is being corrected in:
https://lore.kernel.org/linux-remoteproc/164245960510.1698571.4998090450663669237.b4-ty@xxxxxxxxxx/T/#t
I will rebase on next branch including this patchset
Thanks,
Arnaud
Regards,
Bjorn
