drivers: 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>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
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/drivers/char/rtc.c b/drivers/char/rtc.c
index e2ec2ee4cf79..5f80a9dff573 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -1069,10 +1069,8 @@ no_irq:
         }
 
 #ifdef CONFIG_PROC_FS
-        ent = create_proc_entry("driver/rtc", 0, NULL);
-        if (ent)
-                ent->proc_fops = &rtc_proc_fops;
-        else
+        ent = proc_create("driver/rtc", 0, NULL, &rtc_proc_fops);
+        if (!ent)
                 printk(KERN_WARNING "rtc: Failed to register with procfs.\n");
 #endif