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nvmet-tcp: fix kmap leak when data digest in use

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[ Upstream commit bac04454ef9fada009f0572576837548b190bf94 ]

When data digest is enabled we should unmap pdu iovec before handling
the data digest pdu.

Signed-off-by: Elad Grupi <elad.grupi@dell.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Elad Grupi 2021-03-16 17:44:25 +02:00 committed by Greg Kroah-Hartman
parent 3ac4aaff38
commit fa068ee3f3
1 changed files with 1 additions and 1 deletions
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2
drivers/nvme/target/tcp.c
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@ -1098,11 +1098,11 @@ static int nvmet_tcp_try_recv_data(struct nvmet_tcp_queue *queue)
cmd->rbytes_done += ret;
}
nvmet_tcp_unmap_pdu_iovec(cmd);
if (queue->data_digest) {
nvmet_tcp_prep_recv_ddgst(cmd);
return 0;
}
nvmet_tcp_unmap_pdu_iovec(cmd);
if (!(cmd->flags & NVMET_TCP_F_INIT_FAILED) &&
cmd->rbytes_done == cmd->req.transfer_len) {