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serial: crisv10: fix invalid user-pointer check

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Drop invalid user-pointer check from TIOCGSERIAL handler.

A NULL-pointer can be valid in user space and copy_to_user() takes care
of sanity checking.

Cc: Mikael Starvik <[email protected]>
Cc: [email protected]
Signed-off-by: Johan Hovold <[email protected]>
Acked-by: Jesper Nilsson <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Johan Hovold 2016-11-08 13:24:55 +01:00 • committed by Greg Kroah-Hartman
commit 68832b20c9
1 changed files with 0 additions and 2 deletions
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2
drivers/tty/serial/crisv10.c
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@ -3213,8 +3213,6 @@ get_serial_info(struct e100_serial * info,
* should set them to something else than 0.
*/
if (!retinfo)
return -EFAULT;
memset(&tmp, 0, sizeof(tmp));
tmp.type = info->type;
tmp.line = info->line;