[PATCH v4 4/9] PCI/MSI: Return -ENOSYS for unimplemented interfaces, not -1

From: Alexander Gordeev
Date: Mon Dec 16 2013 - 14:37:33 EST


Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
Suggested-by: Ben Hutchings <bhutchings@xxxxxxxxxxxxxx>
Reviewed-by: Tejun Heo <tj@xxxxxxxxxx>
---
include/linux/pci.h | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index e335f21..39493b7 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)
--
1.7.7.6

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