gfapi: fix compile warning in pub_glfs_h_access()

While compiling libgfapi, the following warning is reported:

    Making all in src
      CC       libgfapi_la-glfs-handleops.lo
    In file included from glfs-handleops.c:12:0:
    glfs-handleops.c: In function 'pub_glfs_h_access':
    glfs-internal.h:216:14: warning: 'old_THIS' may be used uninitialized in this function [-Wmaybe-uninitialized]
             THIS = old_THIS;                                            \
                  ^
    glfs-internal.h:202:36: note: 'old_THIS' was declared here
     #define DECLARE_OLD_THIS xlator_t *old_THIS = NULL
                                        ^
    glfs-handleops.c:1159:2: note: in expansion of macro 'DECLARE_OLD_THIS'
      DECLARE_OLD_THIS;
      ^
      CCLD     libgfapi.la
      CCLD     api.la

The DECLARE_OLD_THIS macro should be done with the declarations of all
the other variables used in this function. Moving the macro further up
in the function prevents this warning.

Backport of:
> Change-Id: I2bedc1aa074893ae3e2c933abc5a167ab5b55f41
> BUG: 1210934
> Reviewed-on: http://review.gluster.org/10728
> Reported-by: Shyamsundar Ranganathan <srangana@redhat.com>
> Signed-off-by: Niels de Vos <ndevos@redhat.com>

Change-Id: I2bedc1aa074893ae3e2c933abc5a167ab5b55f41
BUG: 1215787
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/10730
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>

0 files changed, 0 insertions, 0 deletions