From 423b4487fb23cc9bcbf14f748915bff46151506a Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Sun, 14 Jan 2018 18:34:22 +0200 Subject: [PATCH] nvmet: release a ns reference in nvmet_req_uninit if needed nvmet_req_init looked up a namespace and took a reference on it (unless it failed prior to that). If the request is uninitialized (in error cases) we need to remove that reference in case it was taken, otherwise we leak namespace reference when calling nvme_req_uninit. Signed-off-by: Sagi Grimberg Signed-off-by: Christoph Hellwig --- drivers/nvme/target/core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 7282ea8d3b96..0bd737117a80 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -512,6 +512,7 @@ bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq, req->sg_cnt = 0; req->transfer_len = 0; req->rsp->status = 0; + req->ns = NULL; /* no support for fused commands yet */ if (unlikely(flags & (NVME_CMD_FUSE_FIRST | NVME_CMD_FUSE_SECOND))) { @@ -557,6 +558,8 @@ EXPORT_SYMBOL_GPL(nvmet_req_init); void nvmet_req_uninit(struct nvmet_req *req) { percpu_ref_put(&req->sq->ref); + if (req->ns) + nvmet_put_namespace(req->ns); } EXPORT_SYMBOL_GPL(nvmet_req_uninit); -- GitLab