diff options
| author | Oliver Neukum <oneukum@suse.com> | 2021-03-11 14:37:14 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-07 12:04:22 +0200 |
| commit | 6a51b1e5a60a78d516cfee505fb8f2255b3b351c (patch) | |
| tree | a7b1afa6563ee550ca3d851e95870af842449909 | |
| parent | 7c5ac98ece9ffd79bf879748a5cdc04bc875b028 (diff) | |
cdc-acm: fix BREAK rx code path adding necessary calls
commit 08dff274edda54310d6f1cf27b62fddf0f8d146e upstream.
Counting break events is nice but we should actually report them to
the tty layer.
Fixes: 5a6a62bdb9257 ("cdc-acm: add TIOCMIWAIT")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20210311133714.31881-1-oneukum@suse.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 53d2f02e18a3..a13b9055a0d3 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -334,8 +334,10 @@ static void acm_ctrl_irq(struct urb *urb) acm->iocount.dsr++; if (difference & ACM_CTRL_DCD) acm->iocount.dcd++; - if (newctrl & ACM_CTRL_BRK) + if (newctrl & ACM_CTRL_BRK) { acm->iocount.brk++; + tty_insert_flip_char(&acm->port, 0, TTY_BREAK); + } if (newctrl & ACM_CTRL_RI) acm->iocount.rng++; if (newctrl & ACM_CTRL_FRAMING) |