From bce1a78423961fce676ac65540a31b6ffd179e6d Mon Sep 17 00:00:00 2001 From: Pan Bian Date: Fri, 19 Apr 2019 07:39:00 +0000 Subject: Input: synaptics-rmi4 - fix possible double free The RMI4 function structure has been released in rmi_register_function if error occurs. However, it will be released again in the function rmi_create_function, which may result in a double-free bug. Signed-off-by: Pan Bian Signed-off-by: Dmitry Torokhov --- drivers/input/rmi4/rmi_driver.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers/input/rmi4') diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index fc3ab93b7aea..7fb358f96195 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -860,7 +860,7 @@ static int rmi_create_function(struct rmi_device *rmi_dev, error = rmi_register_function(fn); if (error) - goto err_put_fn; + return error; if (pdt->function_number == 0x01) data->f01_container = fn; @@ -870,10 +870,6 @@ static int rmi_create_function(struct rmi_device *rmi_dev, list_add_tail(&fn->node, &data->function_list); return RMI_SCAN_CONTINUE; - -err_put_fn: - put_device(&fn->dev); - return error; } void rmi_enable_irq(struct rmi_device *rmi_dev, bool clear_wake) -- cgit v1.2.1 From 3a349763cf11e63534b8f2d302f2d0c790566497 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Fri, 26 Apr 2019 17:22:01 -0700 Subject: Input: synaptics-rmi4 - write config register values to the right offset Currently any changed config register values don't take effect, as the function to write them back is called with the wrong register offset. Fixes: ff8f83708b3e (Input: synaptics-rmi4 - add support for 2D sensors and F11) Signed-off-by: Lucas Stach Reviewed-by: Philipp Zabel Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov --- drivers/input/rmi4/rmi_f11.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input/rmi4') diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c index df64d6aed4f7..93901ebd122a 100644 --- a/drivers/input/rmi4/rmi_f11.c +++ b/drivers/input/rmi4/rmi_f11.c @@ -1230,7 +1230,7 @@ static int rmi_f11_initialize(struct rmi_function *fn) } rc = f11_write_control_regs(fn, &f11->sens_query, - &f11->dev_controls, fn->fd.query_base_addr); + &f11->dev_controls, fn->fd.control_base_addr); if (rc) dev_warn(&fn->dev, "Failed to write control registers\n"); -- cgit v1.2.1