xen/pvcalls: free active map buffer on pvcalls_front_free_map
authorOleksii Moisieiev <Oleksii_Moisieiev@epam.com>
Tue, 20 Dec 2022 14:50:13 +0000 (14:50 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 1 Feb 2023 07:34:30 +0000 (08:34 +0100)
commitb91ec58ffb8a5bcc77bd332467f66b0dc5773c59
tree52ca2acd56fd1694ce7109a7ef7a8d4d603da0fc
parent25714807b1fdcf1d7987af8e619e0e5f6893a890
xen/pvcalls: free active map buffer on pvcalls_front_free_map

[ Upstream commit f57034cedeb6e00256313a2a6ee67f974d709b0b ]

Data buffer for active map is allocated in alloc_active_ring and freed
in free_active_ring function, which is used only for the error
cleanup. pvcalls_front_release is calling pvcalls_front_free_map which
ends foreign access for this buffer, but doesn't free allocated pages.
Call free_active_ring to clean all allocated resources.

Signed-off-by: Oleksii Moisieiev <oleksii_moisieiev@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/6a762ee32dd655cbb09a4aa0e2307e8919761311.1671531297.git.oleksii_moisieiev@epam.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/xen/pvcalls-front.c