diff options
| author | Dan Carpenter <dan.carpenter@linaro.org> | 2023-06-06 11:26:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-06 15:46:35 +0300 |
| commit | 52861a3be8d6eae5c90963b747c4276ba6059c6b (patch) | |
| tree | e209353fcde20bcf735e3bc7338988c87c4ce2d5 /drivers/tty | |
| parent | b6c7ff2693ddc24cdad3b032d969303f7b2ae3da (diff) | |
| download | linux-52861a3be8d6eae5c90963b747c4276ba6059c6b.tar.xz | |
serial: core: don't kfree device managed data
The put_device() function will call serial_base_ctrl_release() or
serial_base_port_release() so these kfrees() are a double free bug.
Fixes: 84a9582fd203 ("serial: core: Start managing serial controllers to enable runtime PM")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Message-ID: <ZH7tsTmWY5b/4m+6@moroto>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/serial_base_bus.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/tty/serial/serial_base_bus.c b/drivers/tty/serial/serial_base_bus.c index 9354af7c11af..9de9f6fa6481 100644 --- a/drivers/tty/serial/serial_base_bus.c +++ b/drivers/tty/serial/serial_base_bus.c @@ -98,7 +98,7 @@ struct serial_ctrl_device *serial_base_ctrl_add(struct uart_port *port, serial_base_ctrl_release, port->ctrl_id); if (err) - goto err_free_ctrl_dev; + goto err_put_device; err = device_add(&ctrl_dev->dev); if (err) @@ -108,8 +108,6 @@ struct serial_ctrl_device *serial_base_ctrl_add(struct uart_port *port, err_put_device: put_device(&ctrl_dev->dev); -err_free_ctrl_dev: - kfree(ctrl_dev); return ERR_PTR(err); } @@ -140,7 +138,7 @@ struct serial_port_device *serial_base_port_add(struct uart_port *port, serial_base_port_release, port->line); if (err) - goto err_free_port_dev; + goto err_put_device; port_dev->port = port; @@ -152,8 +150,6 @@ struct serial_port_device *serial_base_port_add(struct uart_port *port, err_put_device: put_device(&port_dev->dev); -err_free_port_dev: - kfree(port_dev); return ERR_PTR(err); } |