[PATCH] Documentation: tty: add closing double backticks for lookahead_buf() prototype

[Bagas Sanjaya <bagasdotme@gmail.com>]

After merging tty tree for linux-next testing, Stephen Rothwell reported
htmldocs warning:

Documentation/driver-api/tty/tty_ldisc:46: include/linux/tty_ldisc.h:190: WARNING: Inline literal start-string without end-string.
Documentation/driver-api/tty/tty_ldisc:46: include/linux/tty_ldisc.h:190: WARNING: Inline emphasis start-string without end-string.
Documentation/driver-api/tty/tty_ldisc:46: include/linux/tty_ldisc.h:190: WARNING: Inline emphasis start-string without end-string.
Documentation/driver-api/tty/tty_ldisc:46: include/linux/tty_ldisc.h:190: WARNING: Inline emphasis start-string without end-string.

The warning is because of missing closing double backticks at
lookahead_buf() function prototype ([DRV] directive), which cause the
prototype to be rendered as normal paragraph text instead of inline code
(monospace).

Fix the warning by adding missing closing backticks.

Link: https://lore.kernel.org/linux-next/20220614164745.7b746354@canb.auug.org.au/
Fixes: 6bb6fa6908ebd3 ("tty: Implement lookahead to process XON/XOFF timely")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
---
 This patch is based on next-20220614.

 include/linux/tty_ldisc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 33678e1936f6a6..ede6f2157f329f 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -187,7 +187,7 @@ int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass,
  *	function for automatic flow control.
  *
  * @lookahead_buf: [DRV] ``void ()(struct tty_struct *tty,
- *			const unsigned char *cp, const char *fp, int count)
+ *			const unsigned char *cp, const char *fp, int count)``
  *
  *	This function is called by the low-level tty driver for characters
  *	not eaten by ->receive_buf() or ->receive_buf2(). It is useful for

base-commit: 35d872b9ea5b3ad784d7479ea728dcb688df2db7
-- 
An old man doll... just what I always wanted! - Clara