Re: [libvirt] [PATCH] Avoid squashing errors during network startup cleanup path

When failing to start a virtual network, we have to cleanup, tearing down any iptables rules. If the iptables rules were not present yet though, this raises an error, which squashes the original error we were handling. * src/network/bridge_driver.c: When failing to start a virtual network, don't squash the original error in cleanup --- src/network/bridge_driver.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 8721747..0777d85 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -1171,6 +1171,7 @@ static int networkStartNetworkDaemon(struct network_driver *driver, virNetworkObjPtr network) { int err; + virErrorPtr save_err; if (virNetworkObjIsActive(network)) { networkReportError(VIR_ERR_INTERNAL_ERROR, @@ -1255,7 +1256,12 @@ static int networkStartNetworkDaemon(struct network_driver *driver, } err_delbr2: + save_err = virSaveLastError(); networkRemoveIptablesRules(driver, network); + if (save_err) { + virSetError(save_err); + virFreeError(save_err); + } err_delbr1: if ((err = brSetInterfaceUp(driver->brctl, network->def->bridge, 0))) {