Thread (14 messages) 14 messages, 3 authors, 2015-12-14
STALE3833d
Revisions (2)
  1. v1 current
  2. v2 [diff vs current]

[PATCH 2/4] n_tty: Ignore all read data when closing

From: Peter Hurley <hidden>
Date: 2015-11-08 22:03:18
Also in: linux-serial, lkml
Subsystem: the rest, tty layer and serial drivers · Maintainers: Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby

On final port close (and thus final tty close), only output flow
control requests in the input data should be processed. Ignore all
other input data, including parity errors, overruns and breaks.

Signed-off-by: Peter Hurley <redacted>
---
 drivers/tty/n_tty.c | 2 --
 1 file changed, 2 deletions(-)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index bc613b8..2de0283 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1564,8 +1564,6 @@ n_tty_receive_buf_closing(struct tty_struct *tty, const unsigned char *cp,
 			flag = *fp++;
 		if (likely(flag == TTY_NORMAL))
 			n_tty_receive_char_closing(tty, *cp++);
-		else
-			n_tty_receive_char_flagged(tty, *cp++, flag);
 	}
 }
 
-- 
2.6.3
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