[dpdk-dev] [PATCH v2 1/7] pci: If a driver's probe function fails, unmap resources.

[Ben Walker]

If resources were mapped prior to probe, unmap them
if probe fails.

This does not handle the case where the kernel driver was
forcibly unbound prior to probe.

Signed-off-by: Ben Walker <benjamin.walker at intel.com>
---
 lib/librte_eal/common/eal_common_pci.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eal/common/eal_common_pci.c 
b/lib/librte_eal/common/eal_common_pci.c
index 6bff675..4f8c3a0 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -215,8 +215,11 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, 
struct rte_pci_device *d

                /* call the driver probe() function */
                ret = dr->probe(dr, dev);
-               if (ret)
+               if (ret) {
                        dev->driver = NULL;
+                       if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING)
+                               rte_eal_pci_unmap_device(dev);
+               }

                return ret;
        }
-- 
2.7.4