This is needed by ./net/bluetooth/rfcomm/tty.c
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
backport/backport-include/linux/tty.h | 1 +
backport/compat/backport-3.10.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/backport/backport-include/linux/tty.h b/backport/backport-include/linux/tty.h
index 7b57ca1..88fbfd0 100644
--- a/backport/backport-include/linux/tty.h
+++ b/backport/backport-include/linux/tty.h
@@ -50,6 +50,7 @@ extern int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
extern void tty_port_tty_wakeup(struct tty_port *port);
+extern void tty_port_tty_hangup(struct tty_port *port, bool check_clocal);
#endif
#endif /* __BACKPORT_LINUX_TTY_H */
diff --git a/backport/compat/backport-3.10.c b/backport/compat/backport-3.10.c
index d8b3bc6..4d44960 100644
--- a/backport/compat/backport-3.10.c
+++ b/backport/compat/backport-3.10.c
@@ -108,4 +108,20 @@ void tty_port_tty_wakeup(struct tty_port *port)
}
}
EXPORT_SYMBOL_GPL(tty_port_tty_wakeup);
+
+/**
+ * tty_port_tty_hangup - helper to hang up a tty
+ *
+ * @port: tty port
+ * @check_clocal: hang only ttys with CLOCAL unset?
+ */
+void tty_port_tty_hangup(struct tty_port *port, bool check_clocal)
+{
+ struct tty_struct *tty = tty_port_tty_get(port);
+
+ if (tty && (!check_clocal || !C_CLOCAL(tty)))
+ tty_hangup(tty);
+ tty_kref_put(tty);
+}
+EXPORT_SYMBOL_GPL(tty_port_tty_hangup);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)) */
--
1.7.10.4
--
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