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authorLinux Build Service Account <lnxbuild@localhost>2018-05-02 13:38:40 -0700
committerGerrit - the friendly Code Review server <code-review@localhost>2018-05-02 13:38:40 -0700
commit9da06237e8cbb2f20a35adf23af8c7bb3b245804 (patch)
treef65b0944b4f3fe43070f3a10676fe2062456b007 /drivers/tty/n_tty.c
parent6fa93fc89f5e5641c0ad1be533b016e065cbf04d (diff)
parentee76c85f715377aec3b0115e48b7d66a726ffdea (diff)
Merge "Merge android-4.4.129 (b1c4836) into msm-4.4"
Diffstat (limited to 'drivers/tty/n_tty.c')
-rw-r--r--drivers/tty/n_tty.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 41dda25da049..190e5dc15738 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2238,6 +2238,12 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
}
if (tty_hung_up_p(file))
break;
+ /*
+ * Abort readers for ttys which never actually
+ * get hung up. See __tty_hangup().
+ */
+ if (test_bit(TTY_HUPPING, &tty->flags))
+ break;
if (!timeout)
break;
if (file->f_flags & O_NONBLOCK) {