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authorEli Cohen <elic@nvidia.com>2022-01-05 12:46:41 +0100
committerMichael S. Tsirkin <mst@redhat.com>2022-01-15 00:50:54 +0100
commit37e07e705888e4c3502f204e9c6785c9c2d6d86a (patch)
tree9c59a89cb41993e7fe57bdc3aa461fdb811cfd50 /drivers/vdpa
parentvdpa: Add support for returning device configuration information (diff)
downloadlinux-37e07e705888e4c3502f204e9c6785c9c2d6d86a.tar.xz
linux-37e07e705888e4c3502f204e9c6785c9c2d6d86a.zip
vdpa/mlx5: Restore cur_num_vqs in case of failure in change_num_qps()
Restore ndev->cur_num_vqs to the original value in case change_num_qps() fails. Fixes: 52893733f2c5 ("vdpa/mlx5: Add multiqueue support") Reviewed-by: Si-Wei Liu<si-wei.liu@oracle.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20220105114646.577224-10-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa')
-rw-r--r--drivers/vdpa/mlx5/net/mlx5_vnet.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index f31de859d175..931109db1517 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1541,9 +1541,11 @@ static int change_num_qps(struct mlx5_vdpa_dev *mvdev, int newqps)
return 0;
clean_added:
- for (--i; i >= cur_qps; --i)
+ for (--i; i >= 2 * cur_qps; --i)
teardown_vq(ndev, &ndev->vqs[i]);
+ ndev->cur_num_vqs = 2 * cur_qps;
+
return err;
}