[PATCH v2 2/3] nodedev: Mark device initialization complete even in case of an error

Michal Privoznik mprivozn at redhat.com
Tue Apr 13 15:57:14 UTC 2021


To speed up nodedev driver initialization, the device enumeration
is done in a separate thread. Once finished, the thread sets a
boolean variable that allows public APIs to be called (instead of
waiting for the thread to finish).

However, if there's an error in the device enumeration thread
then the control jumps over at the 'error' label and the boolean
is never set. This means, that any virNodeDev*() API is stuck
forever. Mark the initialization as complete (the thread is
quitting anyway) and let the APIs proceed.

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/node_device/node_device_udev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c
index 84785d9e1e..658170a767 100644
--- a/src/node_device/node_device_udev.c
+++ b/src/node_device/node_device_udev.c
@@ -1982,6 +1982,7 @@ nodeStateInitializeEnumerate(void *opaque)
     if (nodeDeviceUpdateMediatedDevices() != 0)
         goto error;
 
+ cleanup:
     nodeDeviceLock();
     driver->initialized = true;
     virCondBroadcast(&driver->initCond);
@@ -1996,6 +1997,8 @@ nodeStateInitializeEnumerate(void *opaque)
     priv->threadQuit = true;
     virCondSignal(&priv->threadCond);
     virObjectUnlock(priv);
+
+    goto cleanup;
 }
 
 
-- 
2.26.3




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