[dpdk-dev] [PATCH v3 1/3] pci: If a driver's probe function fails, unmap resources.

[Ben Walker <benjamin.walker@intel.com>]

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@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 33485bc..72547bd 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -210,8 +210,11 @@ 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;
 	}
-- 
2.9.3