diff options
| -rw-r--r-- | drivers/char/mxser_new.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/char/mxser_new.c b/drivers/char/mxser_new.c index 9af07e4999d5..59e0aac19c2f 100644 --- a/drivers/char/mxser_new.c +++ b/drivers/char/mxser_new.c @@ -2230,7 +2230,14 @@ end_intr: port->mon_data.rxcnt += cnt; port->mon_data.up_rxcnt += cnt; + /* + * We are called from an interrupt context with &port->slock + * being held. Drop it temporarily in order to prevent + * recursive locking. + */ + spin_unlock(&port->slock); tty_flip_buffer_push(tty); + spin_lock(&port->slock); } static void mxser_transmit_chars(struct mxser_port *port) |
