Messages in this thread Patch in this message | | | From | Ye Bin <> | Subject | [PATCH 1/5] 9p: fix miss unmap request in 'rdma_request()' | Date | Mon, 21 Nov 2022 16:00:45 +0800 |
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From: Ye Bin <yebin10@huawei.com>
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 <yebin10@huawei.com> --- 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
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