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authorDenis V. Lunev <den@openvz.org>2008-04-29 01:02:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:22 -0700
commitcf7acfab032ff262f42954328cdfd20a5d9aaaac (patch)
tree231698d72d4508f3b26f606f18ef844387ec43e5 /drivers/acpi/battery.c
parent667471386d4068e75a6a55b615701ced61eb6333 (diff)
acpi: use non-racy method for proc entries creation
Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Len Brown <lenb@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/acpi/battery.c')
-rw-r--r--drivers/acpi/battery.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index d5729d5dc190..b1c723f9f58d 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -741,15 +741,13 @@ static int acpi_battery_add_fs(struct acpi_device *device)
}
for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
- entry = create_proc_entry(acpi_battery_file[i].name,
- acpi_battery_file[i].mode, acpi_device_dir(device));
+ entry = proc_create_data(acpi_battery_file[i].name,
+ acpi_battery_file[i].mode,
+ acpi_device_dir(device),
+ &acpi_battery_file[i].ops,
+ acpi_driver_data(device));
if (!entry)
return -ENODEV;
- else {
- entry->proc_fops = &acpi_battery_file[i].ops;
- entry->data = acpi_driver_data(device);
- entry->owner = THIS_MODULE;
- }
}
return 0;
}