[kbuild] net/core/devlink.c:4415:9: warning: Identical condition 'err', second condition is always false

From: Dan Carpenter
Date: Thu Nov 12 2020 - 06:01:59 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3d5e28bff7ad55aea081c1af516cc1c94a5eca7d
commit: 573ed90aa5e23b512168400ba6d65e592081944e devlink: Force enclosing array on binary fmsg data
compiler: riscv64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

cppcheck possible warnings: (new ones prefixed by >>, may not real problems)

>> net/core/devlink.c:4415:9: warning: Identical condition 'err', second condition is always false [identicalConditionAfterEarlyExit]
return err;
^
net/core/devlink.c:4411:6: note: first condition
if (err)
^
net/core/devlink.c:4415:9: note: second condition
return err;
^

vim +/err +4415 net/core/devlink.c

573ed90aa5e23b Aya Levin 2020-02-11 4405 int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg,
573ed90aa5e23b Aya Levin 2020-02-11 4406 const char *name)
573ed90aa5e23b Aya Levin 2020-02-11 4407 {
573ed90aa5e23b Aya Levin 2020-02-11 4408 int err;
573ed90aa5e23b Aya Levin 2020-02-11 4409
573ed90aa5e23b Aya Levin 2020-02-11 4410 err = devlink_fmsg_arr_pair_nest_start(fmsg, name);
573ed90aa5e23b Aya Levin 2020-02-11 4411 if (err)
573ed90aa5e23b Aya Levin 2020-02-11 4412 return err;
573ed90aa5e23b Aya Levin 2020-02-11 4413
573ed90aa5e23b Aya Levin 2020-02-11 4414 fmsg->putting_binary = true;
573ed90aa5e23b Aya Levin 2020-02-11 @4415 return err;

Just "return 0;"

573ed90aa5e23b Aya Levin 2020-02-11 4416 }

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