Commit 034ecc72 authored by Rolf Eike Beer's avatar Rolf Eike Beer Committed by Greg KH
Browse files

[PATCH] PCI Hotplug ibmphp_pci.c: Fix masking out needed information too early



here is the patch that fixes the bug introduced by my previous patch which
already went into 2.6.12-rc2 and is likely to cause trouble is someone hits
one the else case here by accident.

Using the &= operation before the if statement destroys the information the
if asks for so we always go into the else branch.
Signed-off-by: default avatarRolf Eike Beer <eike-hotplug@sf-tec.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent c8958177
......@@ -1308,10 +1308,10 @@ static int unconfigure_boot_device (u8 busno, u8 device, u8 function)
/* ????????? DO WE NEED TO WRITE ANYTHING INTO THE PCI CONFIG SPACE BACK ?????????? */
} else {
/* This is Memory */
start_address &= PCI_BASE_ADDRESS_MEM_MASK;
if (start_address & PCI_BASE_ADDRESS_MEM_PREFETCH) {
/* pfmem */
debug ("start address of pfmem is %x\n", start_address);
start_address &= PCI_BASE_ADDRESS_MEM_MASK;
if (ibmphp_find_resource (bus, start_address, &pfmem, PFMEM) < 0) {
err ("cannot find corresponding PFMEM resource to remove\n");
......@@ -1325,6 +1325,8 @@ static int unconfigure_boot_device (u8 busno, u8 device, u8 function)
} else {
/* regular memory */
debug ("start address of mem is %x\n", start_address);
start_address &= PCI_BASE_ADDRESS_MEM_MASK;
if (ibmphp_find_resource (bus, start_address, &mem, MEM) < 0) {
err ("cannot find corresponding MEM resource to remove\n");
return -EIO;
......@@ -1422,9 +1424,9 @@ static int unconfigure_boot_bridge (u8 busno, u8 device, u8 function)
/* ????????? DO WE NEED TO WRITE ANYTHING INTO THE PCI CONFIG SPACE BACK ?????????? */
} else {
/* This is Memory */
start_address &= PCI_BASE_ADDRESS_MEM_MASK;
if (start_address & PCI_BASE_ADDRESS_MEM_PREFETCH) {
/* pfmem */
start_address &= PCI_BASE_ADDRESS_MEM_MASK;
if (ibmphp_find_resource (bus, start_address, &pfmem, PFMEM) < 0) {
err ("cannot find corresponding PFMEM resource to remove\n");
return -EINVAL;
......@@ -1436,6 +1438,7 @@ static int unconfigure_boot_bridge (u8 busno, u8 device, u8 function)
}
} else {
/* regular memory */
start_address &= PCI_BASE_ADDRESS_MEM_MASK;
if (ibmphp_find_resource (bus, start_address, &mem, MEM) < 0) {
err ("cannot find corresponding MEM resource to remove\n");
return -EINVAL;
......
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