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pvcalls-front: don't try to free unallocated rings
authorStefano Stabellini <sstabellini@kernel.org>
Fri, 21 Dec 2018 23:06:30 +0000 (15:06 -0800)
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>
Wed, 2 Jan 2019 16:00:10 +0000 (11:00 -0500)
commit96283f9a084e23d7cda2d3c5d1ffa6df6cf1ecec
treefe0a1cbbe09216545c426d7743f954feff8c07a3
parentb79470b64fa9266948d1ce8d825ced94c4f63293
pvcalls-front: don't try to free unallocated rings

inflight_req_id is 0 when initialized. If inflight_req_id is 0, there is
no accept_map to free. Fix the check in pvcalls_front_release.

Signed-off-by: Stefano Stabellini <stefanos@xilinx.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
drivers/xen/pvcalls-front.c