forked from luck/tmp_suning_uos_patched
c2608a111b
At unload time, the shpchp driver does not remove sysfs files it had created in the driver's probe entry point. This patch fixes this problem. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
/*
|
|
* Compaq Hot Plug Controller Driver
|
|
*
|
|
* Copyright (c) 1995,2001 Compaq Computer Corporation
|
|
* Copyright (c) 2001,2003 Greg Kroah-Hartman (greg@kroah.com)
|
|
* Copyright (c) 2001 IBM Corp.
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
* Send feedback to <greg@kroah.com>
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/pci.h>
|
|
#include "shpchp.h"
|
|
|
|
|
|
/* A few routines that create sysfs entries for the hot plug controller */
|
|
|
|
static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct pci_dev *pdev;
|
|
char * out = buf;
|
|
int index, busnr;
|
|
struct resource *res;
|
|
struct pci_bus *bus;
|
|
|
|
pdev = container_of (dev, struct pci_dev, dev);
|
|
bus = pdev->subordinate;
|
|
|
|
out += sprintf(buf, "Free resources: memory\n");
|
|
for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
|
|
res = bus->resource[index];
|
|
if (res && (res->flags & IORESOURCE_MEM) &&
|
|
!(res->flags & IORESOURCE_PREFETCH)) {
|
|
out += sprintf(out, "start = %8.8lx, length = %8.8lx\n",
|
|
res->start, (res->end - res->start));
|
|
}
|
|
}
|
|
out += sprintf(out, "Free resources: prefetchable memory\n");
|
|
for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
|
|
res = bus->resource[index];
|
|
if (res && (res->flags & IORESOURCE_MEM) &&
|
|
(res->flags & IORESOURCE_PREFETCH)) {
|
|
out += sprintf(out, "start = %8.8lx, length = %8.8lx\n",
|
|
res->start, (res->end - res->start));
|
|
}
|
|
}
|
|
out += sprintf(out, "Free resources: IO\n");
|
|
for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
|
|
res = bus->resource[index];
|
|
if (res && (res->flags & IORESOURCE_IO)) {
|
|
out += sprintf(out, "start = %8.8lx, length = %8.8lx\n",
|
|
res->start, (res->end - res->start));
|
|
}
|
|
}
|
|
out += sprintf(out, "Free resources: bus numbers\n");
|
|
for (busnr = bus->secondary; busnr <= bus->subordinate; busnr++) {
|
|
if (!pci_find_bus(pci_domain_nr(bus), busnr))
|
|
break;
|
|
}
|
|
if (busnr < bus->subordinate)
|
|
out += sprintf(out, "start = %8.8x, length = %8.8x\n",
|
|
busnr, (bus->subordinate - busnr));
|
|
|
|
return out - buf;
|
|
}
|
|
static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL);
|
|
|
|
void shpchp_create_ctrl_files (struct controller *ctrl)
|
|
{
|
|
device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl);
|
|
}
|
|
|
|
void shpchp_remove_ctrl_files(struct controller *ctrl)
|
|
{
|
|
device_remove_file(&ctrl->pci_dev->dev, &dev_attr_ctrl);
|
|
}
|