CC: [email protected]
CC: [email protected]
TO: Johannes Berg <[email protected]>
CC: Sergey Ryazanov <[email protected]>
CC: Loic Poulain <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   a4849f6000e29235a2707f22e39da6b897bb9543
commit: 88b710532e53de2466d1033fb1d5125aabf3215a wwan: add interface creation 
support
date:   6 months ago
:::::: branch date: 2 hours ago
:::::: commit date: 6 months ago
config: openrisc-randconfig-m031-20211123 
(https://download.01.org/0day-ci/archive/20211126/[email protected]/config)
compiler: or1k-linux-gcc (GCC) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>

New smatch warnings:
drivers/net/wwan/wwan_core.c:914 wwan_rtnl_newlink() warn: passing a valid 
pointer to 'PTR_ERR'

Old smatch warnings:
drivers/net/wwan/wwan_core.c:566 wwan_port_fops_open() warn: passing a valid 
pointer to 'PTR_ERR'

vim +/PTR_ERR +914 drivers/net/wwan/wwan_core.c

88b710532e53de Johannes Berg 2021-06-12  904  
88b710532e53de Johannes Berg 2021-06-12  905  static int 
wwan_rtnl_newlink(struct net *src_net, struct net_device *dev,
88b710532e53de Johannes Berg 2021-06-12  906                         struct 
nlattr *tb[], struct nlattr *data[],
88b710532e53de Johannes Berg 2021-06-12  907                         struct 
netlink_ext_ack *extack)
88b710532e53de Johannes Berg 2021-06-12  908  {
88b710532e53de Johannes Berg 2021-06-12  909    struct wwan_device *wwandev = 
wwan_dev_get_by_parent(dev->dev.parent);
88b710532e53de Johannes Berg 2021-06-12  910    u32 link_id = 
nla_get_u32(data[IFLA_WWAN_LINK_ID]);
88b710532e53de Johannes Berg 2021-06-12  911    int ret;
88b710532e53de Johannes Berg 2021-06-12  912  
88b710532e53de Johannes Berg 2021-06-12  913    if (IS_ERR(wwandev))
88b710532e53de Johannes Berg 2021-06-12 @914            return PTR_ERR(wwandev);
88b710532e53de Johannes Berg 2021-06-12  915  
88b710532e53de Johannes Berg 2021-06-12  916    /* shouldn't have a netdev 
(left) with us as parent so WARN */
88b710532e53de Johannes Berg 2021-06-12  917    if (WARN_ON(!wwandev->ops)) {
88b710532e53de Johannes Berg 2021-06-12  918            ret = -EOPNOTSUPP;
88b710532e53de Johannes Berg 2021-06-12  919            goto out;
88b710532e53de Johannes Berg 2021-06-12  920    }
88b710532e53de Johannes Berg 2021-06-12  921  
88b710532e53de Johannes Berg 2021-06-12  922    if (wwandev->ops->newlink)
88b710532e53de Johannes Berg 2021-06-12  923            ret = 
wwandev->ops->newlink(wwandev->ops_ctxt, dev,
88b710532e53de Johannes Berg 2021-06-12  924                                    
    link_id, extack);
88b710532e53de Johannes Berg 2021-06-12  925    else
88b710532e53de Johannes Berg 2021-06-12  926            ret = 
register_netdevice(dev);
88b710532e53de Johannes Berg 2021-06-12  927  
88b710532e53de Johannes Berg 2021-06-12  928  out:
88b710532e53de Johannes Berg 2021-06-12  929    /* release the reference */
88b710532e53de Johannes Berg 2021-06-12  930    put_device(&wwandev->dev);
88b710532e53de Johannes Berg 2021-06-12  931    return ret;
88b710532e53de Johannes Berg 2021-06-12  932  }
88b710532e53de Johannes Berg 2021-06-12  933  

---
0-DAY CI Kernel Test Service, Intel Corporation
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