This patch fixes the return codes from sendmsg/recvmsg when a signal happens.
Instead of always returning ERESTARTSYS (which confuses X11 rather badly) it
should return EINTR for non-blocking operations.
Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>