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authorAlexey Dobriyan <adobriyan@gmail.com>2014-08-08 14:21:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-08 15:57:22 -0700
commit849d20a12822cba355c054ab0bfe490473413cce (patch)
tree6ed5f945281ec193286d3ad348df74e05d5d7652 /fs/proc
parent4dcc03fc4553943c8bae086aa826bb75171e82a1 (diff)
downloadlinux-849d20a12822cba355c054ab0bfe490473413cce.tar.gz
proc: remove proc_tty_ldisc variable
/proc/tty/ldisc appear to be unused as a directory and
it had been always that way.

But it is userspace visible thing.

Cowardly remove only in-kernel variable holding it.

[akpm@linux-foundation.org: add comment]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/proc_tty.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
index cb761f010300..15f327bed8c6 100644
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -18,7 +18,7 @@
 /*
  * The /proc/tty directory inodes...
  */
-static struct proc_dir_entry *proc_tty_ldisc, *proc_tty_driver;
+static struct proc_dir_entry *proc_tty_driver;
 
 /*
  * This is the handler for /proc/tty/drivers
@@ -176,7 +176,7 @@ void __init proc_tty_init(void)
 {
 	if (!proc_mkdir("tty", NULL))
 		return;
-	proc_tty_ldisc = proc_mkdir("tty/ldisc", NULL);
+	proc_mkdir("tty/ldisc", NULL);	/* Preserved: it's userspace visible */
 	/*
 	 * /proc/tty/driver/serial reveals the exact character counts for
 	 * serial links which is just too easy to abuse for inferring