Messages in this thread | | | From | Logan Gunthorpe <> | Date | Tue, 25 Sep 2018 12:15:19 -0600 | Subject | Re: [PATCH v7 02/13] PCI/P2PDMA: Add sysfs group to display p2pmem stats |
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On 2018-09-25 11:29 a.m., Bart Van Assche wrote: > On Tue, 2018-09-25 at 10:22 -0600, Logan Gunthorpe wrote: >> @@ -83,9 +132,14 @@ static int pci_p2pdma_setup(struct pci_dev *pdev) >> >> pdev->p2pdma = p2p; >> >> + error = sysfs_create_group(&pdev->dev.kobj, &p2pmem_group); >> + if (error) >> + goto out_pool_destroy; >> + >> return 0; >> >> out_pool_destroy: >> + pdev->p2pdma = NULL; >> gen_pool_destroy(p2p->pool); >> out: >> devm_kfree(&pdev->dev, p2p); > > This doesn't look right to me. Shouldn't devm_remove_action() be called instead > of devm_kfree() if sysfs_create_group() fails?
That makes no sense to me. We are reversing a devm_kzalloc() not a custom action....
One could argue we should _also_ remove the pci_p2pdma_release() action, but seeing it has a NULL check on pdev->p2pdma it's pretty harmless to leave in.
Logan
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