CC: [email protected]
BCC: [email protected]
CC: [email protected]
TO: Jiri Pirko <[email protected]>

tree:   https://github.com/jpirko/linux_mlxsw jiri_devel_components
head:   9360f04ac2b51764d94b40113ef1b21b95835ae6
commit: e7261a9db46b29988444322b7b506954c06a7f4d [1/3] net: devlink: introduce 
flash components list
:::::: branch date: 13 hours ago
:::::: commit date: 13 hours ago
config: arc-randconfig-m031-20220524 
(https://download.01.org/0day-ci/archive/20220528/[email protected]/config)
compiler: arceb-elf-gcc (GCC) 11.3.0

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

New smatch warnings:
net/core/devlink.c:6558 devlink_nl_info_fill() warn: missing error code 'err'

Old smatch warnings:
net/core/devlink.c:7154 devlink_fmsg_prepare_skb() error: uninitialized symbol 
'err'.
arch/arc/include/asm/thread_info.h:62 current_thread_info() error: 
uninitialized symbol 'sp'.

vim +/err +6558 net/core/devlink.c

fc6fae7dd987dc Jakub Kicinski 2019-01-31  6529  
f9cf22882c606f Jakub Kicinski 2019-01-31  6530  static int
f9cf22882c606f Jakub Kicinski 2019-01-31  6531  devlink_nl_info_fill(struct 
sk_buff *msg, struct devlink *devlink,
f9cf22882c606f Jakub Kicinski 2019-01-31  6532                       enum 
devlink_command cmd, u32 portid,
f9cf22882c606f Jakub Kicinski 2019-01-31  6533                       u32 seq, 
int flags, struct netlink_ext_ack *extack)
f9cf22882c606f Jakub Kicinski 2019-01-31  6534  {
e7261a9db46b29 Jiri Pirko     2022-05-27  6535          struct 
devlink_flash_component *component;
e7261a9db46b29 Jiri Pirko     2022-05-27  6536          struct nlattr 
*component_attr;
f9cf22882c606f Jakub Kicinski 2019-01-31  6537          struct devlink_info_req 
req;
f9cf22882c606f Jakub Kicinski 2019-01-31  6538          void *hdr;
f9cf22882c606f Jakub Kicinski 2019-01-31  6539          int err;
f9cf22882c606f Jakub Kicinski 2019-01-31  6540  
f9cf22882c606f Jakub Kicinski 2019-01-31  6541          hdr = genlmsg_put(msg, 
portid, seq, &devlink_nl_family, flags, cmd);
f9cf22882c606f Jakub Kicinski 2019-01-31  6542          if (!hdr)
f9cf22882c606f Jakub Kicinski 2019-01-31  6543                  return 
-EMSGSIZE;
f9cf22882c606f Jakub Kicinski 2019-01-31  6544  
f9cf22882c606f Jakub Kicinski 2019-01-31  6545          err = -EMSGSIZE;
f9cf22882c606f Jakub Kicinski 2019-01-31  6546          if 
(devlink_nl_put_handle(msg, devlink))
f9cf22882c606f Jakub Kicinski 2019-01-31  6547                  goto 
err_cancel_msg;
f9cf22882c606f Jakub Kicinski 2019-01-31  6548  
f9cf22882c606f Jakub Kicinski 2019-01-31  6549          req.msg = msg;
f9cf22882c606f Jakub Kicinski 2019-01-31  6550          err = 
devlink->ops->info_get(devlink, &req, extack);
f9cf22882c606f Jakub Kicinski 2019-01-31  6551          if (err)
f9cf22882c606f Jakub Kicinski 2019-01-31  6552                  goto 
err_cancel_msg;
f9cf22882c606f Jakub Kicinski 2019-01-31  6553  
e7261a9db46b29 Jiri Pirko     2022-05-27  6554          
mutex_lock(&devlink->components_lock);
e7261a9db46b29 Jiri Pirko     2022-05-27  6555          
list_for_each_entry(component, &devlink->component_list, list) {
e7261a9db46b29 Jiri Pirko     2022-05-27  6556                  component_attr 
= nla_nest_start(msg, DEVLINK_ATTR_INFO_COMPONENT);
e7261a9db46b29 Jiri Pirko     2022-05-27  6557                  if 
(!component_attr)
e7261a9db46b29 Jiri Pirko     2022-05-27 @6558                          goto 
err_cancel_msg_unlock;
e7261a9db46b29 Jiri Pirko     2022-05-27  6559                  if 
(nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT,
e7261a9db46b29 Jiri Pirko     2022-05-27  6560                                  
   component->name))
e7261a9db46b29 Jiri Pirko     2022-05-27  6561                          goto 
err_cancel_msg_unlock;
e7261a9db46b29 Jiri Pirko     2022-05-27  6562                  err = 
component->info_get(devlink, &req, component->priv,
e7261a9db46b29 Jiri Pirko     2022-05-27  6563                                  
          extack);
e7261a9db46b29 Jiri Pirko     2022-05-27  6564                  if (err)
e7261a9db46b29 Jiri Pirko     2022-05-27  6565                          goto 
err_cancel_msg_unlock;
e7261a9db46b29 Jiri Pirko     2022-05-27  6566                  
nla_nest_end(msg, component_attr);
e7261a9db46b29 Jiri Pirko     2022-05-27  6567          }
e7261a9db46b29 Jiri Pirko     2022-05-27  6568          
mutex_unlock(&devlink->components_lock);
f9cf22882c606f Jakub Kicinski 2019-01-31  6569          genlmsg_end(msg, hdr);
f9cf22882c606f Jakub Kicinski 2019-01-31  6570          return 0;
f9cf22882c606f Jakub Kicinski 2019-01-31  6571  
e7261a9db46b29 Jiri Pirko     2022-05-27  6572  err_cancel_msg_unlock:
e7261a9db46b29 Jiri Pirko     2022-05-27  6573          
mutex_unlock(&devlink->components_lock);
f9cf22882c606f Jakub Kicinski 2019-01-31  6574  err_cancel_msg:
f9cf22882c606f Jakub Kicinski 2019-01-31  6575          genlmsg_cancel(msg, 
hdr);
f9cf22882c606f Jakub Kicinski 2019-01-31  6576          return err;
f9cf22882c606f Jakub Kicinski 2019-01-31  6577  }
f9cf22882c606f Jakub Kicinski 2019-01-31  6578  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp
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