Hello,

The Coccinelle software pointed out that the function "lmc_ioctl"
is an update candidate according to the message "opportunity for memdup_user".
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/net/wan/lmc/lmc_main.c?id=6040e57658eee6eb1315a26119101ca832d1f854#n486

I guess that it would be nice to improve also this implementation.
But there are further constraints to consider. The script "checkpatch.pl"
can point information out like the following.

* ERROR: code indent should use tabs where possible

* WARNING: please, no spaces at the start of a line


The source files for this software module contain also some open issues
for the preferred source code formatting.

* How should these places be fixed so that they will match the current
  Linux coding style before additional adjustments can be safely tried?

* Would you like to suggest any advanced tools (besides "scripts/cleanfile")
  for a corresponding source code beautification?
  Which pretty-printing approaches are acceptable for Linux so far?

Regards,
Markus