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drivers: use non-racy method for proc entries creation (2)

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Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.

Signed-off-by: Denis V. Lunev <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Peter Osterlund <[email protected]>
Cc: Bartlomiej Zolnierkiewicz <[email protected]>
Cc: Dmitry Torokhov <[email protected]>
Cc: Neil Brown <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Alessandro Zummo <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Denis V. Lunev 2008-04-29 01:02:35 -07:00 • committed by Linus Torvalds
commit c7705f3449
12 changed files with 33 additions and 68 deletions
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13
drivers/pci/proc.c
View file

@ -293,6 +293,7 @@ static int proc_bus_pci_release(struct inode *inode, struct file *file)
#endif /* HAVE_PCI_MMAP */
static const struct file_operations proc_bus_pci_operations = {
.owner = THIS_MODULE,
.llseek = proc_bus_pci_lseek,
.read = proc_bus_pci_read,
.write = proc_bus_pci_write,
@ -406,11 +407,10 @@ int pci_proc_attach_device(struct pci_dev *dev)
}
sprintf(name, "%02x.%x", PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
e = create_proc_entry(name, S_IFREG | S_IRUGO | S_IWUSR, bus->procdir);
e = proc_create_data(name, S_IFREG | S_IRUGO | S_IWUSR, bus->procdir,
&proc_bus_pci_operations, dev);
if (!e)
return -ENOMEM;
e->proc_fops = &proc_bus_pci_operations;
e->data = dev;
e->size = dev->cfg_size;
dev->procent = e;
@ -462,6 +462,7 @@ static int proc_bus_pci_dev_open(struct inode *inode, struct file *file)
return seq_open(file, &proc_bus_pci_devices_op);
}
static const struct file_operations proc_bus_pci_dev_operations = {
.owner = THIS_MODULE,
.open = proc_bus_pci_dev_open,
.read = seq_read,
.llseek = seq_lseek,
@ -470,12 +471,10 @@ static const struct file_operations proc_bus_pci_dev_operations = {
static int __init pci_proc_init(void)
{
struct proc_dir_entry *entry;
struct pci_dev *dev = NULL;
proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
entry = create_proc_entry("devices", 0, proc_bus_pci_dir);
if (entry)
entry->proc_fops = &proc_bus_pci_dev_operations;
proc_create("devices", 0, proc_bus_pci_dir,
&proc_bus_pci_dev_operations);
proc_initialized = 1;
while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
pci_proc_attach_device(dev);