can: fix ioctl function removal

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Commit 60649d4e0a ("can: remove obsolete empty ioctl() handler") replaced the
almost empty can_ioctl() function with sock_no_ioctl() which always returns
-EOPNOTSUPP.

Even though we don't have any ioctl() functions on socket/network layer we need
to return -ENOIOCTLCMD to be able to forward ioctl commands like SIOCGIFINDEX
to the network driver layer.

This patch fixes the wrong return codes in the CAN network layer protocols.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Fixes: 60649d4e0a ("can: remove obsolete empty ioctl() handler")
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Oliver Hartkopp 2019-07-29 22:40:56 +02:00 • committed by David S. Miller

parent 1cb9dfca39

commit 473d924d7d

2 changed files with 16 additions and 2 deletions

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9

net/can/bcm.c

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9

net/can/raw.c

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