From: Fan Guo <guofan5@xxxxxxxxxx>
If ib_dma_mapping_error() returns non-zero value, ib_mad_post_receive_mads
will jump out of loops and return -ENOMEM without freeing mad_priv. We fix
this memory-leak problem by freeing mad_priv in this case.
Fixes: 2c34e68f4261 ("IB/mad: Check and handle potential DMA mapping errors")
Signed-off-by: Fan Guo <guofan5@xxxxxxxxxx>
---
drivers/infiniband/core/mad.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 186e0d652e8b..5e080191a725 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -2718,6 +2718,7 @@ static int ib_mad_post_receive_mads(struct ib_mad_qp_info *qp_info,
DMA_FROM_DEVICE);
if (unlikely(ib_dma_mapping_error(qp_info->port_priv->device,
sg_list.addr))) {
+ kfree(mad_priv);
ret = -ENOMEM;
break;
}
--
2.25.1
