From: Tetsuya Mukawa <mukawa@igel.co.jp>
Date: Fri, 7 Aug 2015 09:21:26 +0000 (+0900)
Subject: ethdev: fix illegal port access
X-Git-Tag: spdx-start~8551
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=5c11cefe0e2e03d5eef205dce0d6eb5c4fd340f9

ethdev: fix illegal port access

To obtain detachable flag, pci_drv is accessed in rte_eth_dev_is_detachable().
But pci_drv is only valid if port is enabled. Not to cause illegal access,
add rte_eth_dev_is_valid_port() before accessing.

Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>
---

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 5fe19061d2..6b2400cf02 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -505,7 +505,7 @@ rte_eth_dev_is_detachable(uint8_t port_id)
 {
 	uint32_t drv_flags;
 
-	if (port_id >= RTE_MAX_ETHPORTS) {
+	if (!rte_eth_dev_is_valid_port(port_id)) {
 		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
 		return -EINVAL;
 	}