On Wed, Nov 23, 2022 at 05:39:49PM +0800, Xiongfeng Wang wrote: > for_each_pci_dev() is implemented by pci_get_device(). The comment of > pci_get_device() says that it will increase the reference count for the > returned pci_dev and also decrease the reference count for the input > pci_dev @from if it is not NULL. > > If we break for_each_pci_dev() loop with pdev not NULL, we need to call > pci_dev_put() to decrease the reference count. Add the missing > pci_dev_put() for the normal and error path. > > Fixes: 96d63c0297cc ("[PATCH] Add AMD HW RNG driver") > Signed-off-by: Xiongfeng Wang <wangxiongfeng2@xxxxxxxxxx> > --- > drivers/char/hw_random/amd-rng.c | 18 +++++++++++++----- > 1 file changed, 13 insertions(+), 5 deletions(-) The driver geode-rng seems to have the same problem, could you please fix that as well? Thanks, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt