Re: [PATCH] Yet more PCI fixes for 2.5.73

From: Greg KH (greg@kroah.com)
Date: Thu Jun 26 2003 - 19:51:44 EST


ChangeSet 1.1501, 2003/06/26 16:05:11-07:00, greg@kroah.com

[PATCH] PCI Hotplug: cpqphp: add release() callback and other minor cleanups.

 drivers/pci/hotplug/cpqphp_core.c | 38 ++++++++++++++++++++++----------------
 1 files changed, 22 insertions(+), 16 deletions(-)

diff -Nru a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
--- a/drivers/pci/hotplug/cpqphp_core.c Thu Jun 26 17:39:08 2003
+++ b/drivers/pci/hotplug/cpqphp_core.c Thu Jun 26 17:39:08 2003
@@ -312,6 +312,20 @@
         return previous;
 }
 
+static void release_slot(struct hotplug_slot *hotplug_slot)
+{
+ struct slot *slot = get_slot (hotplug_slot, __FUNCTION__);
+
+ if (slot == NULL)
+ return;
+
+ dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
+
+ kfree(slot->hotplug_slot->info);
+ kfree(slot->hotplug_slot->name);
+ kfree(slot->hotplug_slot);
+ kfree(slot);
+}
 
 static int ctrl_slot_setup (struct controller * ctrl, void *smbios_start, void *smbios_table)
 {
@@ -401,6 +415,7 @@
                 new_slot->capabilities |= ((read_slot_enable(ctrl) << 2) >> ctrl_slot) & 0x04;
 
                 /* register this slot with the hotplug pci core */
+ new_slot->hotplug_slot->release = &release_slot;
                 new_slot->hotplug_slot->private = new_slot;
                 make_slot_name (new_slot->hotplug_slot->name, SLOT_NAME_SIZE, new_slot);
                 new_slot->hotplug_slot->ops = &cpqphp_hotplug_slot_ops;
@@ -415,10 +430,7 @@
                 result = pci_hp_register (new_slot->hotplug_slot);
                 if (result) {
                         err ("pci_hp_register failed with error %d\n", result);
- kfree (new_slot->hotplug_slot->info);
- kfree (new_slot->hotplug_slot->name);
- kfree (new_slot->hotplug_slot);
- kfree (new_slot);
+ release_slot(new_slot->hotplug_slot);
                         return result;
                 }
                 
@@ -430,10 +442,9 @@
                 slot_number++;
         }
 
- return(0);
+ return 0;
 }
 
-
 static int ctrl_slot_cleanup (struct controller * ctrl)
 {
         struct slot *old_slot, *next_slot;
@@ -442,12 +453,9 @@
         ctrl->slot = NULL;
 
         while (old_slot) {
+ /* memory will be freed by the release_slot callback */
                 next_slot = old_slot->next;
                 pci_hp_deregister (old_slot->hotplug_slot);
- kfree(old_slot->hotplug_slot->info);
- kfree(old_slot->hotplug_slot->name);
- kfree(old_slot->hotplug_slot);
- kfree(old_slot);
                 old_slot = next_slot;
         }
 
@@ -498,7 +506,7 @@
                sizeof(struct irq_routing_table)) / sizeof(struct irq_info);
         // Make sure I got at least one entry
         if (len == 0) {
- if (PCIIRQRoutingInfoLength != NULL) kfree(PCIIRQRoutingInfoLength );
+ kfree(PCIIRQRoutingInfoLength);
                 return -1;
         }
 
@@ -509,9 +517,7 @@
 
                 if ((tbus == bus_num) && (tdevice == dev_num)) {
                         *slot = tslot;
-
- if (PCIIRQRoutingInfoLength != NULL)
- kfree(PCIIRQRoutingInfoLength);
+ kfree(PCIIRQRoutingInfoLength);
                         return 0;
                 } else {
                         // Didn't get a match on the target PCI device. Check if the
@@ -540,10 +546,10 @@
         // slot number for the bridge.
         if (bridgeSlot != 0xFF) {
                 *slot = bridgeSlot;
- if (PCIIRQRoutingInfoLength != NULL) kfree(PCIIRQRoutingInfoLength );
+ kfree(PCIIRQRoutingInfoLength);
                 return 0;
         }
- if (PCIIRQRoutingInfoLength != NULL) kfree(PCIIRQRoutingInfoLength );
+ kfree(PCIIRQRoutingInfoLength);
         // Couldn't find an entry in the routing table for this PCI device
         return -1;
 }

-
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