samples: use non-racy method for /proc/marker-example creation

Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to
main tree.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
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, 4 deletions

diff --git a/samples/markers/marker-example.c b/samples/markers/marker-example.c
index 05e438f8b4e2..e90dc5d04392 100644
--- a/samples/markers/marker-example.c
+++ b/samples/markers/marker-example.c
@@ -33,10 +33,8 @@ static struct file_operations mark_ops = {
 static int example_init(void)
 {
         printk(KERN_ALERT "example init\n");
-        pentry_example = create_proc_entry("marker-example", 0444, NULL);
-        if (pentry_example)
-                pentry_example->proc_fops = &mark_ops;
-        else
+        pentry_example = proc_create("marker-example", 0444, NULL, &mark_ops);
+        if (!pentry_example)
                 return -EPERM;
         return 0;
 }