| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 52/89] media: si470x-i2c: Move free() past last use of radio | Date | Mon, 3 Feb 2020 16:19:37 +0000 |
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From: Lee Jones <lee.jones@linaro.org>
A pointer to 'struct si470x_device' is currently used after free:
drivers/media/radio/si470x/radio-si470x-i2c.c:462:25-30: ERROR: reference preceded by free on line 460
Shift the call to free() down past its final use.
NB: Not sending to Mainline, since the problem does not exist there, it was caused by the backport of 2df200ab234a ("media: si470x-i2c: add missed operations in remove") to the stable trees.
Cc: <stable@vger.kernel.org> # v3.18+ Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/media/radio/si470x/radio-si470x-i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/radio/si470x/radio-si470x-i2c.c +++ b/drivers/media/radio/si470x/radio-si470x-i2c.c @@ -453,10 +453,10 @@ static int si470x_i2c_remove(struct i2c_ free_irq(client->irq, radio); video_unregister_device(&radio->videodev); - kfree(radio); v4l2_ctrl_handler_free(&radio->hdl); v4l2_device_unregister(&radio->v4l2_dev); + kfree(radio); return 0; }
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