__qedr_alloc_mr() allocates a memory chunk for "mr->info.pbl_table" with
init_mr_info(). When rdma_alloc_tid() and rdma_register_tid() fail, "mr"
is released while "mr->info.pbl_table" is not released, which will lead
to a memory leak.
We should release the "mr->info.pbl_table" with qedr_free_pbl() when error
occurs to fix the memory leak.
Signed-off-by: Jianglei Nie <niejianglei2021@xxxxxxx>
---
drivers/infiniband/hw/qedr/verbs.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 03ed7c0fae50..d745ce9dc88a 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -3084,7 +3084,7 @@ static struct qedr_mr *__qedr_alloc_mr(struct ib_pd *ibpd,
else
DP_ERR(dev, "roce alloc tid returned error %d\n", rc);
- goto err0;
+ goto err1;
}
/* Index only, 18 bit long, lkey = itid << 8 | key */
@@ -3108,7 +3108,7 @@ static struct qedr_mr *__qedr_alloc_mr(struct ib_pd *ibpd,
rc = dev->ops->rdma_register_tid(dev->rdma_ctx, &mr->hw_mr);
if (rc) {
DP_ERR(dev, "roce register tid returned an error %d\n", rc);
- goto err1;
+ goto err2;
}
mr->ibmr.lkey = mr->hw_mr.itid << 8 | mr->hw_mr.key;
@@ -3117,8 +3117,10 @@ static struct qedr_mr *__qedr_alloc_mr(struct ib_pd *ibpd,
DP_DEBUG(dev, QEDR_MSG_MR, "alloc frmr: %x\n", mr->ibmr.lkey);
return mr;
-err1:
+err2:
dev->ops->rdma_free_tid(dev->rdma_ctx, mr->hw_mr.itid);
+err1:
+ qedr_free_pbl(dev, &mr->info.pbl_info, mr->info.pbl_table);
err0:
kfree(mr);
return ERR_PTR(rc);
--
2.25.1
