net/ixgbe: check probing error

Add NULL parameter check for rte_eth_dev_allocated() API call to
eth_ixgbe_pci_probe().

Coverity Issue: 277216
Fixes: cf80ba6e2038 ("net/ixgbe: add support for representor ports")

Signed-off-by: Declan Doherty <declan.doherty@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index a05527a..91179e9 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -1745,9 +1745,11 @@ eth_ixgbe_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
        if (retval || eth_da.nb_representor_ports < 1)
                return retval;
 
-       /* probe VF representor ports */
        pf_ethdev = rte_eth_dev_allocated(pci_dev->device.name);
+       if (pf_ethdev == NULL)
+               return -ENODEV;
 
+       /* probe VF representor ports */
        for (i = 0; i < eth_da.nb_representor_ports; i++) {
                struct ixgbe_vf_info *vfinfo;
                struct ixgbe_vf_representor representor;