From patchwork series 501563

https://patchwork.ozlabs.org//project/linuxppc-dev/list/?series=501563

Author: Fox Snowpatch

arch/powerpc/kernel/rtas_pci.c

@@ -57,6 +57,9 @@ int rtas_pci_dn_read_config(struct pci_dn *pdn, int where, int size, u32 *val)
 	if (pdn->edev && pdn->edev->pe &&
 	    (pdn->edev->pe->state & EEH_PE_CFG_BLOCKED))
 		return PCIBIOS_SET_FAILED;
+
+	if (pdn->edev && pdn->edev->mode & EEH_DEV_REMOVED)
+		return PCIBIOS_SET_FAILED;
 #endif
 
 	addr = rtas_config_addr(pdn->busno, pdn->devfn, where);
@@ -108,6 +111,9 @@ int rtas_pci_dn_write_config(struct pci_dn *pdn, int where, int size, u32 val)
 	if (pdn->edev && pdn->edev->pe &&
 	    (pdn->edev->pe->state & EEH_PE_CFG_BLOCKED))
 		return PCIBIOS_SET_FAILED;
+
+	if (pdn->edev && pdn->edev->mode & EEH_DEV_REMOVED)
+		return PCIBIOS_SET_FAILED;
 #endif
 
 	addr = rtas_config_addr(pdn->busno, pdn->devfn, where);