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can: raw: fix getsockopt() for new CAN_RAW_XL_VCID_OPTS 

The code for the CAN_RAW_XL_VCID_OPTS getsockopt() was incompletely adopted
from the CAN_RAW_FILTER getsockopt().

Add the missing put_user() and return statements.

Flagged by Smatch.

Fixes: c83c22ec14 ("can: canxl: add virtual CAN network identifier support")
Reported-by: Simon Horman <horms@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20240219200021.12113-1-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Oliver Hartkopp 2024-02-19 21:00:21 +01:00 committed by Marc Kleine-Budde
parent a93fca9201
commit c8fba5d6df
1 changed files with 3 additions and 1 deletions
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4
net/can/raw.c
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@ -835,7 +835,9 @@ static int raw_getsockopt(struct socket *sock, int level, int optname,
if (copy_to_user(optval, &ro->raw_vcid_opts, len))
err = -EFAULT;
}
break;
if (!err)
err = put_user(len, optlen);
return err;
case CAN_RAW_JOIN_FILTERS:
if (len > sizeof(int))