[vfs:work.mount1 32/32] fs/gfs2/ops_fstype.c:1527:9: warning: 'error' may be used uninitialized in this function

[kbuild test robot <lkp@xxxxxxxxx>]

tree:   https://kernel.googlesource.com/pub/scm/linux/kernel/git/viro/vfs.git work.mount1
head:   0ff1992adfee973962c134e8ec2298c14016eed0
commit: 0ff1992adfee973962c134e8ec2298c14016eed0 [32/32] gfs2: Convert gfs2 to fs_context
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 0ff1992adfee973962c134e8ec2298c14016eed0
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=arm 

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

Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings

All warnings (new ones prefixed by >>):

   fs/gfs2/ops_fstype.c: In function 'gfs2_reconfigure':
>> fs/gfs2/ops_fstype.c:1527:9: warning: 'error' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return error;
            ^~~~~

vim +/error +1527 fs/gfs2/ops_fstype.c

---
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