xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

USB: ftdi_sio: remove redundant raise of DTR/RTS at open

Browse Source 
Do not raise DTR/RTS a second time in set_termios at open -- this has
already been taken care of by the tty layer.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold
2013-06-26 16:47:33 +02:00
committed by Greg Kroah-Hartman
parent be0278ccf3
commit 3177130fd7
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/serial/ftdi_sio.c
View File

@@ -2187,7 +2187,7 @@ no_data_parity_stop_changes:
dev_err(ddev, "%s urb failed to set baudrate\n", __func__);
mutex_unlock(&priv->cfg_lock);
/* Ensure RTS and DTR are raised when baudrate changed from 0 */
if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
}