bus/pci: fix generic driver pointer on probe error

The field is set but never resetted on error.
This marks the device as being attached while it is not, and forbid
further attempts to hotplug it.

Fixes: 7917d5f5ea46 ("pci: initialize generic driver pointer")
Cc: stable@dpdk.org
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>

diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index 45e697e..0a4062c 100644 (file)
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -245,6 +245,7 @@ rte_pci_probe_one_driver(struct rte_pci_driver *dr,
        ret = dr->probe(dr, dev);
        if (ret) {
                dev->driver = NULL;
+               dev->device.driver = NULL;
                if ((dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) &&
                        /* Don't unmap if device is unsupported and
                         * driver needs mapped resources.