The build failure is caused by a false positive of some static analysys steps done by gcc (that don't happen on -O0). --- src/qemu/qemu_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index c011151..801044b 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -15807,7 +15807,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, int ret = -1; size_t i; int idx = -1; - int conf_idx; + int conf_idx = -1; bool set_bytes = false; bool set_iops = false; virQEMUDriverConfigPtr cfg = NULL; -- 2.0.2