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pci: unmap resources if probe fails

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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>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
This commit is contained in:
Ben Walker 2017-01-11 10:10:10 -07:00 committed by Thomas Monjalon
parent 6de5c0f130
commit e84ad157b7
1 changed files with 4 additions and 1 deletions
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5
lib/librte_eal/common/eal_common_pci.c
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@ -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;
}