From: Ye Bin <[email protected]>
If send request failed or fail to get semaphore will not call 'send_done()',
request may miss to unmap. So add unmap handle above error.
Signed-off-by: Ye Bin <[email protected]>
---
net/9p/trans_rdma.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index 6ff706760676..e498208ed72b 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -500,7 +500,7 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
if (down_interruptible(&rdma->sq_sem)) {
err = -EINTR;
- goto send_error;
+ goto mapping_error;
}
/* Mark request as `sent' *before* we actually send it,
@@ -510,12 +510,15 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
req->status = REQ_STATUS_SENT;
err = ib_post_send(rdma->qp, &wr, NULL);
if (err)
- goto send_error;
+ goto mapping_error;
/* Success */
return 0;
/* Handle errors that happened during or while preparing the send: */
+ mapping_error:
+ ib_dma_unmap_single(rdma->cm_id->device, c->busa,
+ c->req->tc.size, DMA_TO_DEVICE);
send_error:
req->status = REQ_STATUS_ERROR;
kfree(c);
--
2.31.1