airo: sanitize BSSListRid handling

[safe/jmp/linux-2.6] / drivers / pci / pci-sysfs.c

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index cd913a2..7d18773 100644 (file)
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -20,7 +20,7 @@
 #include <linux/stat.h>
 #include <linux/topology.h>
 #include <linux/mm.h>
-
+#include <linux/capability.h>
 #include "pci.h"
 
 static int sysfs_initialized;  /* = 0 */
@@ -213,7 +213,8 @@ struct device_attribute pci_dev_attrs[] = {
 };
 
 static ssize_t
-pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_read_config(struct kobject *kobj, struct bin_attribute *bin_attr,
+               char *buf, loff_t off, size_t count)
 {
        struct pci_dev *dev = to_pci_dev(container_of(kobj,struct device,kobj));
        unsigned int size = 64;
@@ -285,7 +286,8 @@ pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
 }
 
 static ssize_t
-pci_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_write_config(struct kobject *kobj, struct bin_attribute *bin_attr,
+                char *buf, loff_t off, size_t count)
 {
        struct pci_dev *dev = to_pci_dev(container_of(kobj,struct device,kobj));
        unsigned int size = count;
@@ -352,7 +354,8 @@ pci_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
  * callback routine (pci_legacy_read).
  */
 ssize_t
-pci_read_legacy_io(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_read_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
+                  char *buf, loff_t off, size_t count)
 {
         struct pci_bus *bus = to_pci_bus(container_of(kobj,
                                                       struct class_device,
@@ -376,7 +379,8 @@ pci_read_legacy_io(struct kobject *kobj, char *buf, loff_t off, size_t count)
  * callback routine (pci_legacy_write).
  */
 ssize_t
-pci_write_legacy_io(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_write_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
+                   char *buf, loff_t off, size_t count)
 {
         struct pci_bus *bus = to_pci_bus(container_of(kobj,
                                                      struct class_device,
@@ -499,7 +503,6 @@ static int pci_create_resource_files(struct pci_dev *pdev)
                        sprintf(res_attr_name, "resource%d", i);
                        res_attr->attr.name = res_attr_name;
                        res_attr->attr.mode = S_IRUSR | S_IWUSR;
-                       res_attr->attr.owner = THIS_MODULE;
                        res_attr->size = pci_resource_len(pdev, i);
                        res_attr->mmap = pci_mmap_resource;
                        res_attr->private = &pdev->resource[i];
@@ -529,7 +532,8 @@ static inline void pci_remove_resource_files(struct pci_dev *dev) { return; }
  * writing anything except 0 enables it
  */
 static ssize_t
-pci_write_rom(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_write_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
+             char *buf, loff_t off, size_t count)
 {
        struct pci_dev *pdev = to_pci_dev(container_of(kobj, struct device, kobj));
 
@@ -552,7 +556,8 @@ pci_write_rom(struct kobject *kobj, char *buf, loff_t off, size_t count)
  * device corresponding to @kobj.
  */
 static ssize_t
-pci_read_rom(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_read_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
+            char *buf, loff_t off, size_t count)
 {
        struct pci_dev *pdev = to_pci_dev(container_of(kobj, struct device, kobj));
        void __iomem *rom;
@@ -582,7 +587,6 @@ static struct bin_attribute pci_config_attr = {
        .attr = {
                .name = "config",
                .mode = S_IRUGO | S_IWUSR,
-               .owner = THIS_MODULE,
        },
        .size = 256,
        .read = pci_read_config,
@@ -593,13 +597,17 @@ static struct bin_attribute pcie_config_attr = {
        .attr = {
                .name = "config",
                .mode = S_IRUGO | S_IWUSR,
-               .owner = THIS_MODULE,
        },
        .size = 4096,
        .read = pci_read_config,
        .write = pci_write_config,
 };
 
+int __attribute__ ((weak)) pcibios_add_platform_entries(struct pci_dev *dev)
+{
+       return 0;
+}
+
 int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
 {
        struct bin_attribute *rom_attr = NULL;
@@ -620,14 +628,14 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
                goto err_bin_file;
 
        /* If the device has a ROM, try to expose it in sysfs. */
-       if (pci_resource_len(pdev, PCI_ROM_RESOURCE)) {
+       if (pci_resource_len(pdev, PCI_ROM_RESOURCE) ||
+           (pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW)) {
                rom_attr = kzalloc(sizeof(*rom_attr), GFP_ATOMIC);
                if (rom_attr) {
                        pdev->rom_attr = rom_attr;
                        rom_attr->size = pci_resource_len(pdev, PCI_ROM_RESOURCE);
                        rom_attr->attr.name = "rom";
                        rom_attr->attr.mode = S_IRUSR;
-                       rom_attr->attr.owner = THIS_MODULE;
                        rom_attr->read = pci_read_rom;
                        rom_attr->write = pci_write_rom;
                        retval = sysfs_create_bin_file(&pdev->dev.kobj, rom_attr);
@@ -635,16 +643,22 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
                                goto err_rom;
                } else {
                        retval = -ENOMEM;
-                       goto err_bin_file;
+                       goto err_resource_files;
                }
        }
        /* add platform-specific attributes */
-       pcibios_add_platform_entries(pdev);
+       if (pcibios_add_platform_entries(pdev))
+               goto err_rom_file;
 
        return 0;
 
+err_rom_file:
+       if (pci_resource_len(pdev, PCI_ROM_RESOURCE))
+               sysfs_remove_bin_file(&pdev->dev.kobj, rom_attr);
 err_rom:
        kfree(rom_attr);
+err_resource_files:
+       pci_remove_resource_files(pdev);
 err_bin_file:
        if (pdev->cfg_size < 4096)
                sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr);
@@ -688,11 +702,13 @@ static int __init pci_sysfs_init(void)
        sysfs_initialized = 1;
        for_each_pci_dev(pdev) {
                retval = pci_create_sysfs_dev_files(pdev);
-               if (retval)
+               if (retval) {
+                       pci_dev_put(pdev);
                        return retval;
+               }
        }
 
        return 0;
 }
 
-__initcall(pci_sysfs_init);
+late_initcall(pci_sysfs_init);