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| author | Denis V. Lunev <den@openvz.org> | 2008-04-29 01:02:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 08:06:22 -0700 |
| commit | cf7acfab032ff262f42954328cdfd20a5d9aaaac (patch) | |
| tree | 231698d72d4508f3b26f606f18ef844387ec43e5 /drivers/acpi/event.c | |
| parent | 667471386d4068e75a6a55b615701ced61eb6333 (diff) | |
| download | linux-cf7acfab032ff262f42954328cdfd20a5d9aaaac.tar.gz linux-cf7acfab032ff262f42954328cdfd20a5d9aaaac.tar.bz2 linux-cf7acfab032ff262f42954328cdfd20a5d9aaaac.zip | |
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/event.c')
| -rw-r--r-- | drivers/acpi/event.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index abec1ca94cf4..0c24bd4d6562 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -102,6 +102,7 @@ static unsigned int acpi_system_poll_event(struct file *file, poll_table * wait) } static const struct file_operations acpi_system_event_ops = { + .owner = THIS_MODULE, .open = acpi_system_open_event, .read = acpi_system_read_event, .release = acpi_system_close_event, @@ -294,10 +295,9 @@ static int __init acpi_event_init(void) #ifdef CONFIG_ACPI_PROC_EVENT /* 'event' [R] */ - entry = create_proc_entry("event", S_IRUSR, acpi_root_dir); - if (entry) - entry->proc_fops = &acpi_system_event_ops; - else + entry = proc_create("event", S_IRUSR, acpi_root_dir, + &acpi_system_event_ops); + if (!entry) return -ENODEV; #endif |