Commit 8ec5db6b authored by Alexander Gordeev's avatar Alexander Gordeev Committed by Bjorn Helgaas
Browse files

PCI/MSI: Return -ENOSYS for unimplemented interfaces, not -1 



Suggested-by: default avatarBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: default avatarAlexander Gordeev <agordeev@redhat.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarTejun Heo <tj@kernel.org>
parent 2adc7907

include/linux/pci.h

+3 −3
Original line number Diff line number Diff line
@@ -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)