diff options
| author | Alexey Dobriyan <adobriyan@gmail.com> | 2014-08-08 17:21:31 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-08 18:57:22 -0400 |
| commit | 849d20a12822cba355c054ab0bfe490473413cce (patch) | |
| tree | 6ed5f945281ec193286d3ad348df74e05d5d7652 /fs/proc/proc_tty.c | |
| parent | 4dcc03fc4553943c8bae086aa826bb75171e82a1 (diff) | |
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/proc_tty.c')
| -rw-r--r-- | fs/proc/proc_tty.c | 4 |
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 @@ | |||
| 18 | /* | 18 | /* |
| 19 | * The /proc/tty directory inodes... | 19 | * The /proc/tty directory inodes... |
| 20 | */ | 20 | */ |
| 21 | static struct proc_dir_entry *proc_tty_ldisc, *proc_tty_driver; | 21 | static struct proc_dir_entry *proc_tty_driver; |
| 22 | 22 | ||
| 23 | /* | 23 | /* |
| 24 | * This is the handler for /proc/tty/drivers | 24 | * This is the handler for /proc/tty/drivers |
| @@ -176,7 +176,7 @@ void __init proc_tty_init(void) | |||
| 176 | { | 176 | { |
| 177 | if (!proc_mkdir("tty", NULL)) | 177 | if (!proc_mkdir("tty", NULL)) |
| 178 | return; | 178 | return; |
| 179 | proc_tty_ldisc = proc_mkdir("tty/ldisc", NULL); | 179 | proc_mkdir("tty/ldisc", NULL); /* Preserved: it's userspace visible */ |
| 180 | /* | 180 | /* |
| 181 | * /proc/tty/driver/serial reveals the exact character counts for | 181 | * /proc/tty/driver/serial reveals the exact character counts for |
| 182 | * serial links which is just too easy to abuse for inferring | 182 | * serial links which is just too easy to abuse for inferring |