Return -errno instead of -1 if VFIO_IOMMU_DIRTY_PAGES ioctl fails in
vfio_get_dirty_bitmap().
Signed-off-by: Avihai Horon <avih...@nvidia.com>
Reviewed-by: Cédric Le Goater <c...@redhat.com>
---
hw/vfio/common.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 6f5afe9f5a..27db71427e 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -1337,6 +1337,7 @@ static int vfio_get_dirty_bitmap(VFIOContainer
*container, uint64_t iova,
ret = ioctl(container->fd, VFIO_IOMMU_DIRTY_PAGES, dbitmap);
if (ret) {
+ ret = -errno;
error_report("Failed to get dirty bitmap for iova: 0x%"PRIx64
" size: 0x%"PRIx64" err: %d", (uint64_t)range->iova,
(uint64_t)range->size, errno);
--
2.26.3
