From: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Date: Fri, 19 Dec 2014 15:01:36 +0000 (+0100)
Subject: af_packet: fix possible memory leak
X-Git-Tag: spdx-start~9893
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=dd6590fe2fd7;p=dpdk.git

af_packet: fix possible memory leak

In rte_pmd_init_internals, we are mapping memory but not released
if error occurs it could produce memory leak.
Add unmmap function to release memory.

Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Acked-by: Michal Jastrzebski <michalx.k.jastrzebski@intel.com>
Acked-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/lib/librte_pmd_af_packet/rte_eth_af_packet.c b/lib/librte_pmd_af_packet/rte_eth_af_packet.c
index 236749b988..755780a10a 100644
--- a/lib/librte_pmd_af_packet/rte_eth_af_packet.c
+++ b/lib/librte_pmd_af_packet/rte_eth_af_packet.c
@@ -481,6 +481,11 @@ rte_pmd_init_internals(const char *name,
 	if (*internals == NULL)
 		goto error;
 
+	for (q = 0; q < nb_queues; q++) {
+		(*internals)->rx_queue[q].map = MAP_FAILED;
+		(*internals)->tx_queue[q].map = MAP_FAILED;
+	}
+
 	req = &((*internals)->req);
 
 	req->tp_block_size = blocksize;
@@ -682,6 +687,8 @@ error:
 		rte_free(pci_dev);
 	if (*internals) {
 		for (q = 0; q < nb_queues; q++) {
+			munmap((*internals)->rx_queue[q].map,
+			       2 * req->tp_block_size * req->tp_block_nr);
 			if ((*internals)->rx_queue[q].rd)
 				rte_free((*internals)->rx_queue[q].rd);
 			if ((*internals)->tx_queue[q].rd)