forked from mirrors/nixpkgs
23 lines
689 B
Diff
23 lines
689 B
Diff
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/patch/?id=4291086b1f081b869c6d79e5b7441633dc3ace00
|
|
|
|
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
|
|
index 41fe8a0..fe9d129 100644
|
|
--- a/drivers/tty/n_tty.c
|
|
+++ b/drivers/tty/n_tty.c
|
|
@@ -2353,8 +2353,12 @@ static ssize_t n_tty_write(struct tty_struct *tty, struct file *file,
|
|
if (tty->ops->flush_chars)
|
|
tty->ops->flush_chars(tty);
|
|
} else {
|
|
+ struct n_tty_data *ldata = tty->disc_data;
|
|
+
|
|
while (nr > 0) {
|
|
+ mutex_lock(&ldata->output_lock);
|
|
c = tty->ops->write(tty, b, nr);
|
|
+ mutex_unlock(&ldata->output_lock);
|
|
if (c < 0) {
|
|
retval = c;
|
|
goto break_out;
|
|
--
|
|
cgit v0.10.1
|
|
|