macintosh: ans-lcd: use get_user() for reading user bytes

anslcd_write() checks the user buffer with access_ok() and then reads it
one byte at a time with __get_user(), writing each byte to the LCD in
between.  The ANSLCD_SENDCTRL ioctl does the same with the ioctl
argument, but with no access_ok() at all, so on architectures where
__get_user() does not check the address it will read from any address it
is given.

Use get_user() in both places.  The ignored return values stay as they
were: a fault still reads as zero, which ends the SENDCTRL loop.

This is part of getting rid of __get_user() and __put_user() entirely.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

0 files changed, 0 insertions, 0 deletions