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can: avoids a false warning 

At this point optlen == sizeof(sfilter) but some compilers are dumb.

Reported-by: Németh Márton <nm127@freemail.h
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2010-04-09 23:47:31 +00:00 committed by David S. Miller
parent dac876193c
commit 4ffa87012e
1 changed files with 1 additions and 1 deletions
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2
net/can/raw.c
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@ -445,7 +445,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
return -EFAULT;
}
} else if (count == 1) {
if (copy_from_user(&sfilter, optval, optlen))
if (copy_from_user(&sfilter, optval, sizeof(sfilter)))
return -EFAULT;
}