DPDK auxiliary bus first creates a list of known devices in the
`auxiliary_bus.device_list` and then tries to attach a driver to each
device on that list.
If the driver attachment has failed, a device will remain on the list.
The device destruction did not validate driver existence and
crashed.
The patch validates auxiliary device driver before accessing
driver related resources.
Fixes: 1afce3086cf4 ("bus/auxiliary: introduce auxiliary bus")
Cc: [email protected]
Signed-off-by: Gregory Etelson <[email protected]>
Acked-by: Dariusz Sosnowski <[email protected]>
---
drivers/bus/auxiliary/auxiliary_common.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/bus/auxiliary/auxiliary_common.c
b/drivers/bus/auxiliary/auxiliary_common.c
index 5c6c6b0ef2..ac766e283e 100644
--- a/drivers/bus/auxiliary/auxiliary_common.c
+++ b/drivers/bus/auxiliary/auxiliary_common.c
@@ -163,6 +163,8 @@ rte_auxiliary_driver_remove_dev(struct rte_auxiliary_device
*dev)
return -EINVAL;
drv = dev->driver;
+ if (drv == NULL)
+ return 0;
AUXILIARY_LOG(DEBUG, "Driver %s remove auxiliary device %s on NUMA node
%i",
drv->driver.name, dev->name, dev->device.numa_node);
--
2.48.1
