Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-28 23:21:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

tty: fix termios input-speed encoding

Browse Source 
Make sure to clear the CIBAUD bits before OR-ing the new mask when
encoding the termios input baud rate.

This could otherwise lead to an incorrect input rate being reported back
and incidentally set on subsequent termios updates.

Fixes: edc6afc549 ("[PATCH] tty: switch to ktermios and new framework")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2018-07-15 15:39:33 +02:00 committed by Greg Kroah-Hartman
parent 8a8a66a1a1
commit fada18c48d
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/tty/tty_baudrate.c
View File

@ -169,6 +169,9 @@ void tty_termios_encode_baud_rate(struct ktermios *termios,
ibinput = 1; /* An input speed was specified */
#endif
termios->c_cflag &= ~CBAUD;
#ifdef IBSHIFT
termios->c_cflag &= ~(CBAUD << IBSHIFT);
#endif
/*
* Our goal is to find a close match to the standard baud rate