On Thu, Oct 03, 2013 at 09:48:39PM +0200, Alexander Gordeev wrote: > > pci_enable_msix() may fail, but it can not return a positive number. > That is true according to the current logic but the comment on top of pci_enable_msix() still says: "A return of < 0 indicates a failure. Or a return of > 0 indicates that driver request is exceeding the number of irqs or MSI-X vectors available" So you're counting on an implementation that may change in the future. I think leaving the code as it is now is safer.
