Commit 02368b7c authored Aug 06, 2021 by Niklas Schnelle Committed by Heiko Carstens Aug 25, 2021

s390/pci: cleanup resources only if necessary



It's currently safe to call zpci_cleanup_bus_resources() even if the
resources were never created but it makes no sense so check
zdev->has_resources before we call zpci_cleanup_bus_resources() in
zpci_release_device().

Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

parent 7c0eaa78

arch/s390/pci/pci.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -822,6 +822,7 @@ void zpci_release_device(struct kref *kref)
		case ZPCI_FN_STATE_STANDBY:
		if (zdev->has_hp_slot)
		zpci_exit_slot(zdev);
		if (zdev->has_resources)
		zpci_cleanup_bus_resources(zdev);
		zpci_bus_device_unregister(zdev);
		zpci_destroy_iommu(zdev);