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PCI: hotplug: Document unchecked return value of pci_hp_add_bridge()

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Some hotplug drivers do not check the return value of pci_hp_add_bridge().
This may be problematic if the driver proceeds after pci_hp_add_bridge()
fails.

Link: https://lore.kernel.org/r/16a2442ea6ee896987a44df3ed509e4cfde44475.1714762038.git.namcao@linutronix.de
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Nam Cao 2024-05-03 21:23:21 +02:00 committed by Bjorn Helgaas
parent 4cece76496
commit e6e9a9a455
1 changed files with 6 additions and 0 deletions
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6
drivers/pci/hotplug/TODO
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@ -6,6 +6,8 @@ cpcihp:
->set_power callbacks in struct cpci_hp_controller_ops. Why were they
introduced? Can they be removed from the struct?
* Returned code from pci_hp_add_bridge() is not checked.
cpqphp:
* The driver spawns a kthread cpqhp_event_thread() which is woken by the
@ -16,6 +18,8 @@ cpqphp:
* A large portion of cpqphp_ctrl.c and cpqphp_pci.c concerns resource
management. Doesn't this duplicate functionality in the core?
* Returned code from pci_hp_add_bridge() is not checked.
ibmphp:
* Implementations of hotplug_slot_ops callbacks such as get_adapter_present()
@ -43,6 +47,8 @@ ibmphp:
* A large portion of ibmphp_res.c and ibmphp_pci.c concerns resource
management. Doesn't this duplicate functionality in the core?
* Returned code from pci_hp_add_bridge() is not checked.
sgi_hotplug:
* Several functions access the pci_slot member in struct hotplug_slot even