diff mbox series

[v4,01/14] vfio/common: Fix error reporting in vfio_get_dirty_bitmap()

Message ID 20230307020258.58215-2-joao.m.martins@oracle.com
State New
Headers show
Series vfio/migration: Device dirty page tracking | expand

Commit Message

Joao Martins March 7, 2023, 2:02 a.m. UTC 
From: Avihai Horon <avihaih@nvidia.com>

Return -errno instead of -1 if VFIO_IOMMU_DIRTY_PAGES ioctl fails in
vfio_get_dirty_bitmap().

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
---
 hw/vfio/common.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index bab83c0e55cb..9fc305448fa2 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -1335,6 +1335,7 @@  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);