kernel: 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.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 5 deletions

diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index f091d13def0..6fc0040f3e3 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -472,11 +472,7 @@ static const struct file_operations kallsyms_operations = {
 
 static int __init kallsyms_init(void)
 {
-        struct proc_dir_entry *entry;
-
-        entry = create_proc_entry("kallsyms", 0444, NULL);
-        if (entry)
-                entry->proc_fops = &kallsyms_operations;
+        proc_create("kallsyms", 0444, NULL, &kallsyms_operations);
         return 0;
 }
 __initcall(kallsyms_init);