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authorOliver Neukum <oneukum@suse.com>2021-03-11 16:37:14 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-23 15:25:41 +0300
commit08dff274edda54310d6f1cf27b62fddf0f8d146e (patch)
tree190cbc9f141990ebefc9f2f072a1fb83b0e198e2 /drivers/usb/class/cdc-acm.c
parent72035f4954f0bca2d8c47cf31b3629c42116f5b7 (diff)
downloadlinux-08dff274edda54310d6f1cf27b62fddf0f8d146e.tar.xz
cdc-acm: fix BREAK rx code path adding necessary calls
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>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
-rw-r--r--drivers/usb/class/cdc-acm.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 39ddb5585ded..b013671261a2 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -313,8 +313,10 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf)
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)