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net/smc: fix using of uninitialized completions
[ Upstream commit 6d7373d ] In smc_wr_tx_send_wait() the completion on index specified by pend->idx is initialized and after smc_wr_tx_send() was called the wait for completion starts. pend->idx is used to get the correct index for the wait, but the pend structure could already be cleared in smc_wr_tx_process_cqe(). Introduce pnd_idx to hold and use a local copy of the correct index. Fixes: 09c61d2 ("net/smc: wait for departure of an IB message") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
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