[PATCH 5/9] PCI/MSI/s390: Make return values only 0/-errno when MSIs allocated
From: Alexander Gordeev <hidden>
Date: 2013-09-09 15:25:11
Also in:
linux-pci, lkml
Subsystem:
s390 architecture, s390 pci subsystem, the rest · Maintainers:
Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Niklas Schnelle, Gerd Bayer, Linus Torvalds
Signed-off-by: Alexander Gordeev <redacted> --- arch/s390/pci/pci.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index f17a834..c79c6e4 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c@@ -427,6 +427,8 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) pr_debug("%s: requesting %d MSI-X interrupts...", __func__, nvec); if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI) return -EINVAL; + if (type == PCI_CAP_ID_MSI && nvec > 1) + return 1; msi_vecs = min(nvec, ZPCI_MSI_VEC_MAX); msi_vecs = min_t(unsigned int, msi_vecs, CONFIG_PCI_NR_MSI);
--
1.7.7.6
--
Regards,
Alexander Gordeev
agordeev@redhat.com