On 01/03/18 10:44 AM, Bjorn Helgaas wrote:
I think these two statements are out of order, since the attributes dereference pdev->p2pdma. And it looks like you set "error" unnecessarily, since you return immediately looking at it.
Per the previous series, sysfs_create_group is must_check for some reason. I had a printk there but you didn't think it was necessary. So assigning it to error is the only way to squash the warning.
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