[dpdk-dev] [PATCH 17.11] lib/librte_ether/rte_ethdev.c: Check device count

[Talal Irfan]

Bugzilla ID: 6
Cc: dev at dpdk.org
Cc: Thomas Monjalon <thomas at monjalon.net>
Cc: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
Cc: stable at dpdk.org
Reported-by: Wang Zhike <wangzhike at jd.com>
Suggested-by: Vipin Varghese <vipin.varghese at intel.com>
Signed-off-by: Talal Irfan <talal.irfan at emumba.com>
---
 lib/librte_ether/rte_ethdev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 318af2869..ac19baf0c 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -376,6 +376,12 @@ rte_eth_dev_attach(const char *devargs, uint16_t *port_id)
 		goto err;
 	}
 
+	if (current <= 0) {
+		RTE_LOG(ERR, EAL, "No port found for device (%s)\n", name);
+		ret = -EINVAL;
+		goto err;
+	}
+
 	/* parse devargs, then retrieve device name and args */
 	if (rte_eal_parse_devargs_str(devargs, &name, &args))
 		goto err;
-- 
2.17.1