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| author | Wenwen Wang <wenwen@cs.uga.edu> | 2019-08-18 22:23:01 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2019-08-20 19:44:45 +0200 |
| commit | 5c1baaa82cea2c815a5180ded402a7cd455d1810 (patch) | |
| tree | a549a0855c24e5f40643479dffddd5244de431aa /drivers/infiniband | |
| parent | RDMA/cma: fix null-ptr-deref Read in cma_cleanup (diff) | |
| download | linux-5c1baaa82cea2c815a5180ded402a7cd455d1810.tar.xz linux-5c1baaa82cea2c815a5180ded402a7cd455d1810.zip | |
IB/mlx4: Fix memory leaks
In mlx4_ib_alloc_pv_bufs(), 'tun_qp->tx_ring' is allocated through
kcalloc(). However, it is not always deallocated in the following execution
if an error occurs, leading to memory leaks. To fix this issue, free
'tun_qp->tx_ring' whenever an error occurs.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/1566159781-4642-1-git-send-email-wenwen@cs.uga.edu
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mad.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 68c951491a08..57079110af9b 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -1677,8 +1677,6 @@ tx_err: tx_buf_size, DMA_TO_DEVICE); kfree(tun_qp->tx_ring[i].buf.addr); } - kfree(tun_qp->tx_ring); - tun_qp->tx_ring = NULL; i = MLX4_NUM_TUNNEL_BUFS; err: while (i > 0) { @@ -1687,6 +1685,8 @@ err: rx_buf_size, DMA_FROM_DEVICE); kfree(tun_qp->ring[i].addr); } + kfree(tun_qp->tx_ring); + tun_qp->tx_ring = NULL; kfree(tun_qp->ring); tun_qp->ring = NULL; return -ENOMEM; |