pt_msix
struct pt_msix *pt_msix = pt->pt_msix;
if (pt_msix->msix_count)
struct pt_msix *pt_msix;
pt_msix = devm_kzalloc(dev, sizeof(*pt_msix), GFP_KERNEL);
if (!pt_msix)
pt->pt_msix = pt_msix;
struct pt_msix *pt_msix = pt->pt_msix;
pt_msix->msix_entry.entry = 0;
ret = pci_enable_msix_range(pdev, &pt_msix->msix_entry, 1, 1);
pt_msix->msix_count = ret;
pt->pt_irq = pt_msix->msix_entry.vector;
struct pt_msix *pt_msix;