diff options
| author |   Sebastian Ott <sebott@linux.vnet.ibm.com> | 2015-03-16 18:49:59 +0100 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2015-04-15 16:06:39 -0400 |
| commit | cc47d369b51286129aad1735096b1884b8068ad1 (patch) | |
| tree | 9a3cb89acaf5173765fcb4cef189b917c3f20194 /drivers/infiniband/hw/mlx4/mad.c | |
| parent | MAINTAINERS: Adding list of maintainers for ocrdma (diff) | |
| download | linux-dev-cc47d369b51286129aad1735096b1884b8068ad1.tar.xz linux-dev-cc47d369b51286129aad1735096b1884b8068ad1.zip | |
infiniband/mlx4: check for mapping error
Since ib_dma_map_single can fail use ib_dma_mapping_error to check
for errors.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Acked-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/mad.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mad.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 59040265e361..9cd2b002d7ae 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -1430,6 +1430,10 @@ static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx, tun_qp->ring[i].addr, rx_buf_size, DMA_FROM_DEVICE); + if (ib_dma_mapping_error(ctx->ib_dev, tun_qp->ring[i].map)) { + kfree(tun_qp->ring[i].addr); + goto err; + } } for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) { @@ -1442,6 +1446,11 @@ static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx, tun_qp->tx_ring[i].buf.addr, tx_buf_size, DMA_TO_DEVICE); + if (ib_dma_mapping_error(ctx->ib_dev, + tun_qp->tx_ring[i].buf.map)) { + kfree(tun_qp->tx_ring[i].buf.addr); + goto tx_err; + } tun_qp->tx_ring[i].ah = NULL; } spin_lock_init(&tun_qp->tx_lock); |