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net/smc: add receive timeout check

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The SMC receive function currently lacks a timeout check under the
condition that no data were received and no data are available. This
patch adds such a check.

Signed-off-by: Hans Wippel <[email protected]>
Signed-off-by: Ursula Braun <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Hans Wippel
2017-09-21 15:31:02 -07:00
committed by David S. Miller
parent 09579ac803
commit 846e344eb7
1 changed files with 2 additions and 0 deletions
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net/smc/smc_rx.c
+2
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@@ -148,6 +148,8 @@ int smc_rx_recvmsg(struct smc_sock *smc, struct msghdr *msg, size_t len,
read_done = sock_intr_errno(timeo);
break;
}
if (!timeo)
return -EAGAIN;
}
if (!atomic_read(&conn->bytes_to_rcv)) {