From: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Date: Fri, 26 May 2017 11:59:14 +0000 (+0200)
Subject: vhost: fix guest pages memory leak
X-Git-Tag: spdx-start~2994
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=29c7c2fdaa4e88eebee6e3abaa15858d9616b1aa;p=dpdk.git

vhost: fix guest pages memory leak

This patch fixes a memory leak.
virtio_net::guest_pages is allocated in vhost_setup_mem_table(),
reallocated in add_one_guest_page(), but never freed.

Fixes: e246896178e6 ("vhost: get guest/host physical address mappings")
Cc: stable@dpdk.org

Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Jens Freimann <jfreiman@redhat.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
---

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 437e41f8be..92db73a1af 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -114,6 +114,10 @@ vhost_backend_cleanup(struct virtio_net *dev)
 		rte_free(dev->mem);
 		dev->mem = NULL;
 	}
+
+	free(dev->guest_pages);
+	dev->guest_pages = NULL;
+
 	if (dev->log_addr) {
 		munmap((void *)(uintptr_t)dev->log_addr, dev->log_size);
 		dev->log_addr = 0;