Re: [PATCH] PCI: Fix reference count leak in pci_create_slot()

From: Markus Elfring
Date: Fri May 29 2020 - 01:45:56 EST


Please add a prefix to the patch subject.


> kobject_init_and_add() takes reference even when it fails.

I suggest to extend this description another bit.
Which object is affected here?


> If this function returns an error, kobject_put() must be called to
> properly clean up the memory associated with the object.

Such a copy from the function description of this programming interface
can be helpful.


> Thus, when call of kobject_init_and_add() fail,

I propose to avoid the repetition of this condition.


> we should call kobject_put() instead of kfree().

How do you think about a wording variant like the following?

Replace a call of the function âkfreeâ by âkobject_putâ
because of using kernel objects in the proper way.


> Previous commit "b8eb718348b8" fixed a similar problem.

I wonder if such information is really relevant for the commit message.

Regards,
Markus