Refuse unsupported controls by returning -EINVAL in the s_ctrl operation. Signed-off-by: Jacopo Mondi <jacopo@xxxxxxxxxx> --- drivers/media/i2c/ar0521.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/i2c/ar0521.c b/drivers/media/i2c/ar0521.c index e673424880ac..fcd852760750 100644 --- a/drivers/media/i2c/ar0521.c +++ b/drivers/media/i2c/ar0521.c @@ -547,6 +547,10 @@ static int ar0521_s_ctrl(struct v4l2_ctrl *ctrl) ret = ar0521_write_reg(sensor, AR0521_REG_TEST_PATTERN_MODE, ctrl->val); break; + default: + dev_err(&sensor->i2c_client->dev, + "Unsupported control %x\n", ctrl->id); + return -EINVAL; } pm_runtime_put(&sensor->i2c_client->dev); -- 2.37.3
