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[2/9] PCI/MSI/PPC: Make return values only 0/-errno when MSIs allocated[PATCH 5/9] PCI/MSI/s390: Make return values only 0/-errno when MSIs allocated

Message ID 20130909152548.GF24962@dhcp-26-207.brq.redhat.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Alexander Gordeev Sept. 9, 2013, 3:25 p.m. UTC 
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
---
 arch/s390/pci/pci.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

Comments

Alexander Gordeev Sept. 9, 2013, 3:38 p.m. UTC | #1
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Patch

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);