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authorAlexander Gordeev2013-12-16 09:34:57 +0100
committerBjorn Helgaas2013-12-20 09:45:05 -0700
commit8ec5db6b20c860ddd1311c794b38c98ce86ac7ae (patch)
tree1d662f224548eebd7bf4402d67439e679da65fc9
parent2adc7907bac2c72535894732c4b41f9210f9e577 (diff)
PCI/MSI: Return -ENOSYS for unimplemented interfaces, not -1
Suggested-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Tejun Heo <tj@kernel.org>
-rw-r--r--include/linux/pci.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 36a5b1828f91..3c95efd12f3c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1156,13 +1156,13 @@ struct msix_entry {
#ifndef CONFIG_PCI_MSI
static inline int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec)
{
- return -1;
+ return -ENOSYS;
}
static inline int
pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec)
{
- return -1;
+ return -ENOSYS;
}
static inline void pci_msi_shutdown(struct pci_dev *dev)
@@ -1177,7 +1177,7 @@ static inline int pci_msix_table_size(struct pci_dev *dev)
static inline int pci_enable_msix(struct pci_dev *dev,
struct msix_entry *entries, int nvec)
{
- return -1;
+ return -ENOSYS;
}
static inline void pci_msix_shutdown(struct pci_dev *dev)