On Wed, Oct 12, 2016 at 05:24:31AM +0000, fx IWATA NOBUO wrote: > Hello, > > I will send a patch to clear this warning. > > The current behavior is as following: > vdev_to_vhci() is inline of container_of(). > A pointer (struct vhci_hcd *vhci) may be container_of() from NULL for a > while. > If it is container_of() from NULL, it will not be referenced because of > NULL check of source pointer of the container_of().
Are you looking at linux-next? vdev_to_vhci() derefernces "vdev" to get vdev->rhport so this is a bug and not a false positive. Smatch sometimes does have false positives because it thinks foo->array is a dereference when really we're taking the address of the array. I should fix that... But it understands that container_of(NULL) is ok. regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
