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>

1 files changed, 2 insertions, 6 deletions

diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c
index e5b40e3e0082..b0f8a857ec02 100644
--- a/arch/powerpc/platforms/iseries/lpevents.c
+++ b/arch/powerpc/platforms/iseries/lpevents.c
@@ -330,15 +330,11 @@ static const struct file_operations proc_lpevents_operations = {
 
 static int __init proc_lpevents_init(void)
 {
-        struct proc_dir_entry *e;
-
         if (!firmware_has_feature(FW_FEATURE_ISERIES))
                 return 0;
 
-        e = create_proc_entry("iSeries/lpevents", S_IFREG|S_IRUGO, NULL);
-        if (e)
-                e->proc_fops = &proc_lpevents_operations;
-
+        proc_create("iSeries/lpevents", S_IFREG|S_IRUGO, NULL,
+                    &proc_lpevents_operations);
         return 0;
 }
 __initcall(proc_lpevents_init);