linux-imx

        ret = find_dynamic_major();

        if (ret < 0) {

            pr_err("CHRDEV \"%s\" dynamic allocation region is full\n",

                   name);

            goto out;

        }

        major = ret;

    }

​

    if (major >= CHRDEV_MAJOR_MAX) {

        ret = -EINVAL;

        goto out;

    }

​

    cd->major = major;

    cd->baseminor = baseminor;

    cd->minorct = minorct;

    strlcpy(cd->name, name, sizeof(cd->name));

​

    i = major_to_index(major);