After abf75aea24 the compiler screams: qemu/qemu_driver.c: In function 'qemuNodeDeviceDetachFlags': qemu/qemu_driver.c:10693:9: error: 'domain' may be used uninitialized in this function [-Werror=maybe-uninitialized] pci = virPCIDeviceNew(domain, bus, slot, function); ^ qemu/qemu_driver.c:10693:9: error: 'bus' may be used uninitialized in this function [-Werror=maybe-uninitialized] qemu/qemu_driver.c:10693:9: error: 'slot' may be used uninitialized in this function [-Werror=maybe-uninitialized] qemu/qemu_driver.c:10693:9: error: 'function' may be used uninitialized in this function [-Werror=maybe-uninitialized] Since the other functions qemuNodeDeviceReAttach and qemuNodeDeviceReset looks exactly the same, I've initialized the variables there as well. However, I am still wondering why those functions don't matter to gcc while the first one does. --- Pushed as build breaker. src/qemu/qemu_driver.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 6a9135a..4856f37 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -10669,7 +10669,7 @@ qemuNodeDeviceDetachFlags(virNodeDevicePtr dev, { virQEMUDriverPtr driver = dev->conn->privateData; virPCIDevicePtr pci = NULL; - unsigned domain, bus, slot, function; + unsigned domain = 0, bus = 0, slot = 0, function = 0; int ret = -1; virNodeDeviceDefPtr def = NULL; char *xml = NULL; @@ -10737,7 +10737,7 @@ qemuNodeDeviceReAttach(virNodeDevicePtr dev) virQEMUDriverPtr driver = dev->conn->privateData; virPCIDevicePtr pci = NULL; virPCIDevicePtr other; - unsigned domain, bus, slot, function; + unsigned domain = 0, bus = 0, slot = 0, function = 0; int ret = -1; virNodeDeviceDefPtr def = NULL; char *xml = NULL; @@ -10799,7 +10799,7 @@ qemuNodeDeviceReset(virNodeDevicePtr dev) { virQEMUDriverPtr driver = dev->conn->privateData; virPCIDevicePtr pci; - unsigned domain, bus, slot, function; + unsigned domain = 0, bus = 0, slot = 0, function = 0; int ret = -1; virNodeDeviceDefPtr def = NULL; char *xml = NULL; -- 1.8.1.5