[NET]: Fix race condition in sk_wait_event().
It is broken, the condition is checked out of socket lock. It is
wonderful the bug survived for so long time.
[ This fixes bugzilla #6233:
race condition in tcp_sendmsg when connection became established ]
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sock.h b/include/net/sock.h
index 3075803..f63d0d5 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -478,9 +478,9 @@
rc = __condition; \
if (!rc) { \
*(__timeo) = schedule_timeout(*(__timeo)); \
- rc = __condition; \
} \
lock_sock(__sk); \
+ rc = __condition; \
rc; \
})
