[dpdk-dev] [PATCH] ethdev: Fix illegal access of rte_eth_dev_is_detachable()

[Tetsuya Mukawa]

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 at igel.co.jp>
---
 lib/librte_ether/rte_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 5fe1906..6b2400c 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;
 	}
-- 
2.1.4