From: Miroslav Rezanina <mreza...@redhat.com> When declaring g_autofree variable without inicialization, compiler will raise "may be used uninitialized in this function" warning due to automatic free handling.
This is mentioned in docs/devel/style.rst (quote from section "Automatic memory deallocation"): * Variables declared with g_auto* MUST always be initialized, otherwise the cleanup function will use uninitialized stack memory Add inicialization to NULL for these declaration to prevent this warning. Signed-off-by: Miroslav Rezanina <mreza...@redhat.com> --- * From v1: -- Removed fixes in hw/remote/memory.c and hw/remote/proxy.c fixed by patch sent by Zenghui Yu (multi-process: Initialize variables declared with g_auto*) --- hw/s390x/s390-pci-vfio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/s390x/s390-pci-vfio.c b/hw/s390x/s390-pci-vfio.c index ead4f222d5..0ee7dc21f2 100644 --- a/hw/s390x/s390-pci-vfio.c +++ b/hw/s390x/s390-pci-vfio.c @@ -29,7 +29,7 @@ */ bool s390_pci_update_dma_avail(int fd, unsigned int *avail) { - g_autofree struct vfio_iommu_type1_info *info; + g_autofree struct vfio_iommu_type1_info *info = NULL; uint32_t argsz; assert(avail); @@ -230,7 +230,7 @@ static void s390_pci_read_pfip(S390PCIBusDevice *pbdev, */ void s390_pci_get_clp_info(S390PCIBusDevice *pbdev) { - g_autofree struct vfio_device_info *info; + g_autofree struct vfio_device_info *info = NULL; VFIOPCIDevice *vfio_pci; uint32_t argsz; int fd; -- 2.27.0