Re: [PATCH v3 5/8] Bluetooth: Fix error code for invalid CID in l2cap_config_req

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Hi Johan,

> The convention of the L2CAP code is to return EFAULT when a CID in the
> request packet is invalid. This patch fixes the l2cap_config_req to use
> that error code instead of ENOENT.
> 
> Signed-off-by: Johan Hedberg <johan.hedberg@xxxxxxxxx>
> ---
> net/bluetooth/l2cap_core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
> index 9ec1561f..d134501 100644
> --- a/net/bluetooth/l2cap_core.c
> +++ b/net/bluetooth/l2cap_core.c
> @@ -3978,7 +3978,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn,
> 
> 	chan = l2cap_get_chan_by_scid(conn, dcid);
> 	if (!chan)
> -		return -ENOENT;
> +		return -EFAULT;

do we really want to use EFAULT. That is normally only used if a memory copy from userspace to kernel or vice versa fails.

Regards

Marcel

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