diff options
| author | Alex Dewar <alex.dewar@gmx.co.uk> | 2020-08-06 20:56:15 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-08-10 15:01:21 +0200 |
| commit | 05acc4beb24c7e5ed3ae20a3d3ab2b29b40cb385 (patch) | |
| tree | 2bbc1c3defa4f67ddcc1718e8c12ec69d7853863 /drivers/vdpa | |
| parent | vdpa_sim: init iommu lock (diff) | |
| download | linux-05acc4beb24c7e5ed3ae20a3d3ab2b29b40cb385.tar.xz linux-05acc4beb24c7e5ed3ae20a3d3ab2b29b40cb385.zip | |
vdpa/mlx5: Fix uninitialised variable in core/mr.c
If the kernel is unable to allocate memory for the variable dmr then
err will be returned without being set. Set err to -ENOMEM in this
case.
Fixes: 94abbccdf291 ("vdpa/mlx5: Add shared memory registration code")
Addresses-Coverity: ("Uninitialized variables")
Signed-off-by: Alex Dewar <alex.dewar@gmx.co.uk>
Link: https://lore.kernel.org/r/20200806185625.67344-1-alex.dewar@gmx.co.uk
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eli Cohen <eli@mellanox.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/mlx5/core/mr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c index f5dec0274133..ef1c550f8266 100644 --- a/drivers/vdpa/mlx5/core/mr.c +++ b/drivers/vdpa/mlx5/core/mr.c @@ -319,8 +319,10 @@ static int add_direct_chain(struct mlx5_vdpa_dev *mvdev, u64 start, u64 size, u8 while (size) { sz = (u32)min_t(u64, MAX_KLM_SIZE, size); dmr = kzalloc(sizeof(*dmr), GFP_KERNEL); - if (!dmr) + if (!dmr) { + err = -ENOMEM; goto err_alloc; + } dmr->start = st; dmr->end = st + sz; |