diff options
| author | Denis V. Lunev <den@openvz.org> | 2008-04-29 01:02:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 08:06:22 -0700 |
| commit | 667471386d4068e75a6a55b615701ced61eb6333 (patch) | |
| tree | 2bf51dfa6209ca6637c1cff084b15c132b280ab0 /arch/powerpc/kernel/rtas_flash.c | |
| parent | 6f1c86ec315711d21666751b0bdae69ce2c6d589 (diff) | |
| download | blackbird-op-linux-667471386d4068e75a6a55b615701ced61eb6333.tar.gz blackbird-op-linux-667471386d4068e75a6a55b615701ced61eb6333.zip | |
powerpc: 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: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.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 'arch/powerpc/kernel/rtas_flash.c')
| -rw-r--r-- | arch/powerpc/kernel/rtas_flash.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c index 627f126d1848..0a5e22b22729 100644 --- a/arch/powerpc/kernel/rtas_flash.c +++ b/arch/powerpc/kernel/rtas_flash.c @@ -704,18 +704,11 @@ static int initialize_flash_pde_data(const char *rtas_call_name, static struct proc_dir_entry *create_flash_pde(const char *filename, const struct file_operations *fops) { - struct proc_dir_entry *ent = NULL; - - ent = create_proc_entry(filename, S_IRUSR | S_IWUSR, NULL); - if (ent != NULL) { - ent->proc_fops = fops; - ent->owner = THIS_MODULE; - } - - return ent; + return proc_create(filename, S_IRUSR | S_IWUSR, NULL, fops); } static const struct file_operations rtas_flash_operations = { + .owner = THIS_MODULE, .read = rtas_flash_read, .write = rtas_flash_write, .open = rtas_excl_open, @@ -723,6 +716,7 @@ static const struct file_operations rtas_flash_operations = { }; static const struct file_operations manage_flash_operations = { + .owner = THIS_MODULE, .read = manage_flash_read, .write = manage_flash_write, .open = rtas_excl_open, @@ -730,6 +724,7 @@ static const struct file_operations manage_flash_operations = { }; static const struct file_operations validate_flash_operations = { + .owner = THIS_MODULE, .read = validate_flash_read, .write = validate_flash_write, .open = rtas_excl_open, |
