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-rw-r--r--drivers/tty/serial/serial_core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 3253905..2cf5649 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1319,9 +1319,9 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
uport = state->uart_port;
port = &state->port;
- pr_debug("uart_close(%d) called\n", uport->line);
+ pr_debug("uart_close(%d) called\n", uport ? uport->line : -1);
- if (tty_port_close_start(port, tty, filp) == 0)
+ if (!port->count || tty_port_close_start(port, tty, filp) == 0)
return;
/*
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