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path: root/drivers/pci/msi.c
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Diffstat (limited to 'drivers/pci/msi.c')
-rw-r--r--drivers/pci/msi.c40
1 files changed, 22 insertions, 18 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index a7f2a014046b..7085d665db01 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -494,24 +494,8 @@ static int msix_capability_init(struct pci_dev *dev,
494 } 494 }
495 495
496 ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSIX); 496 ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSIX);
497 if (ret < 0) { 497 if (ret)
498 /* If we had some success report the number of irqs 498 goto error;
499 * we succeeded in setting up. */
500 int avail = 0;
501 list_for_each_entry(entry, &dev->msi_list, list) {
502 if (entry->irq != 0) {
503 avail++;
504 }
505 }
506
507 if (avail != 0)
508 ret = avail;
509 }
510
511 if (ret) {
512 free_msi_irqs(dev);
513 return ret;
514 }
515 499
516 /* 500 /*
517 * Some devices require MSI-X to be enabled before we can touch the 501 * Some devices require MSI-X to be enabled before we can touch the
@@ -540,6 +524,26 @@ static int msix_capability_init(struct pci_dev *dev,
540 pci_write_config_word(dev, pos + PCI_MSIX_FLAGS, control); 524 pci_write_config_word(dev, pos + PCI_MSIX_FLAGS, control);
541 525
542 return 0; 526 return 0;
527
528error:
529 if (ret < 0) {
530 /*
531 * If we had some success, report the number of irqs
532 * we succeeded in setting up.
533 */
534 int avail = 0;
535
536 list_for_each_entry(entry, &dev->msi_list, list) {
537 if (entry->irq != 0)
538 avail++;
539 }
540 if (avail != 0)
541 ret = avail;
542 }
543
544 free_msi_irqs(dev);
545
546 return ret;
543} 547}
544 548
545/** 549/**