diff options
| author | Pan Bian <bianpan2016@163.com> | 2019-04-19 07:39:00 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 19:40:26 +0200 |
| commit | ec69b3c91b3bc83e5bdc70c846358e4fbb30c321 (patch) | |
| tree | f604bf705f9e4910602abe91b8be92373542a192 /drivers | |
| parent | 6a2abf951ed3970db129bf060863662121d4784f (diff) | |
Input: synaptics-rmi4 - fix possible double free
[ Upstream commit bce1a78423961fce676ac65540a31b6ffd179e6d ]
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 <bianpan2016@163.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/rmi4/rmi_driver.c | 6 |
1 files changed, 1 insertions, 5 deletions
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) |