get_device(9)

💅 get_device — like, the manual page bestie

ok so this is get_device(9), straight out of the Kernel API Manual. Grab a snack, we're bumping a refcount together 🫶

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✨ NAME ✨

get_device — increment reference count for device.

That's it. That's the whole job. She's a one-trick pony and honestly? The pony ate. 🔥

🌸 SYNOPSIS 🌸

struct device * get_device (struct device *dev );

🎀 ARGUMENTS 🎀

• dev — the device. The device in question. The one and only. 👑

🦋 DESCRIPTION 🦋

Okay so here's the tea: get_device literally just forwards the call over to kobject_get 💌 — no extra layers, no secret sauce, it's giving "middleman who's actually useful".

But! And this is the part where she's a considerate icon ✨ — she does take care to provide for the case that we get a NULL pointer passed in. So if dev is NULL, she's got you. Not me checking for NULL before dereferencing, couldn't be her 💅 (jk it literally is her, that's the whole point).

ngl, the entire description is "it delegates + it handles NULL". That's it. That's the lore. No cap. 😭

⭐ SEE ALSO ⭐

ok buckle up bestie, this list is LONG, we're in Kernel file ./drivers/base/core.c territory 🌈 — all of these are (9):

• __fwnode_link_add(9), __fwnode_link_del(9), __fwnode_link_cycle(9), fwnode_links_purge_suppliers(9), fwnode_links_purge_consumers(9), fwnode_links_purge(9)
• __fwnode_links_move_consumers(9), __fw_devlink_pickup_dangling_consumers(9), fw_devlink_refresh_fwnode(9), device_is_dependent(9), device_pm_move_to_tail(9), device_link_wait_removal(9)
• device_link_add(9), device_link_del(9), device_link_remove(9), device_links_check_suppliers(9), __device_links_queue_sync_state(9), device_links_flush_sync_list(9)
• device_links_force_bind(9), device_links_driver_bound(9), __device_links_no_driver(9), device_links_no_driver(9), device_links_driver_cleanup(9), device_links_busy(9)
• device_links_unbind_consumers(9), device_links_purge(9), wait_for_init_devices_probe(9), fwnode_is_ancestor_of(9), fwnode_get_next_parent_dev(9), __fw_devlink_relax_cycles(9)
• fw_devlink_create_devlink(9), __fw_devlink_link_to_consumers(9), __fw_devlink_link_to_suppliers(9), dev_driver_string(9), device_release(9), devm_device_add_group(9)
• devices_kset_move_before(9), devices_kset_move_after(9), devices_kset_move_last(9), device_create_file(9), device_remove_file(9), device_remove_file_self(9)
• device_create_bin_file(9), device_remove_bin_file(9), device_initialize(9), kobject_has_children(9), dev_set_name(9), device_add(9)
• device_register(9), put_device(9), device_del(9), device_unregister(9), device_get_devnode(9), device_for_each_child(9)
• device_for_each_child_reverse(9), device_for_each_child_reverse_from(9), device_find_child(9), device_offline(9), device_online(9), __root_device_register(9)
• root_device_unregister(9), device_create(9), device_create_with_groups(9), device_destroy(9), device_rename(9), device_move(9)
• device_change_owner(9), device_shutdown(9), dev_err_probe(9), dev_warn_probe(9), set_primary_fwnode(9), set_secondary_fwnode(9)
• device_remove_of_node(9), device_add_of_node(9), device_set_of_node_from_dev(9), get_dev_from_fwnode(9)

iykyk 🧚

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and that's the whole page, bestie — dropping from ./drivers/base with a date stamp of October 2026, all wrapped up in the Kernel API Manual 💖 periodt. go forth and bump that refcount responsibly 🎀🌟