features/quota: Avoid mem_put on null local

Problem:
QUOTA_STACK_UNWIND does not check if local is NULL before mem_put.
This leads to a callingfn log for every setxattr in quota.

Fix:
Made sure the mem_put happens only on non-null local in quota.

Additional changes:
Removed unused QUOTA_STACK_DESTROY macro.

Tests:
Peformed setfattr on the mount point and the Invalid argument
logs don't come anymore. Checked that the change does not introduce
any memory leak in quota.

Change-Id: Ie4534c7af0fff80e35d8510311055f930262594f
BUG: 856541
Signed-off-by: Pranith Kumar K <pranithk@gluster.com>
Reviewed-on: http://review.gluster.org/3936
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>

0 files changed, 0 insertions, 0 deletions