USB: cp210x: add support for Corsair usb dongle

[pandora-kernel.git] / drivers / tty / n_tty.c

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 0f8a785..bac83d8 100644 (file)
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1997,7 +1997,9 @@ static ssize_t n_tty_write(struct tty_struct *tty, struct file *file,
                                tty->ops->flush_chars(tty);
                } else {
                        while (nr > 0) {
+                               mutex_lock(&tty->output_lock);
                                c = tty->ops->write(tty, b, nr);
+                               mutex_unlock(&tty->output_lock);
                                if (c < 0) {
                                        retval = c;
                                        goto break_out;