mcb_probe() does not aqcuire a reference to the probed device but drops one when removing the device. As it is actually using the device, it should grab a reference via get_device().
This could lead to a panic found with a rmmod/modprobe stress test Signed-off-by: Johannes Thumshirn <[email protected]> Reported-by: Andreas Werner <[email protected]> Tested-by: Andreas Werner <[email protected]> --- drivers/mcb/mcb-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c index b73c6e7..f5923c2 100644 --- a/drivers/mcb/mcb-core.c +++ b/drivers/mcb/mcb-core.c @@ -66,6 +66,7 @@ static int mcb_probe(struct device *dev) if (!found_id) return -ENODEV; + get_device(dev); return mdrv->probe(mdev, found_id); } -- 2.8.1
