3.16.44-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter <dan.carpenter@xxxxxxxxxx> commit ee0d8d8482345ff97a75a7d747efc309f13b0d80 upstream. We should call ipxitf_put() if the copy_to_user() fails. Reported-by: 李强 <liqiang6-s@xxxxxx> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- net/ipx/af_ipx.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/net/ipx/af_ipx.c +++ b/net/ipx/af_ipx.c @@ -1168,11 +1168,10 @@ static int ipxitf_ioctl(unsigned int cmd sipx->sipx_network = ipxif->if_netnum; memcpy(sipx->sipx_node, ipxif->if_node, sizeof(sipx->sipx_node)); - rc = -EFAULT; + rc = 0; if (copy_to_user(arg, &ifr, sizeof(ifr))) - break; + rc = -EFAULT; ipxitf_put(ipxif); - rc = 0; break; } case SIOCAIPXITFCRT: