tree 7cc495fcd98841375a3f3a6a574dd6d9fcd7a7c2
parent dc709bd190c130b299ac19d596594256265c042a
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1156941210 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1156941210 +0200

[S390] broken copy_in_user function.

The copy_in_user primitive does not work as advertised. If the source
and target area are available copy_in_user copies one byte too much.
If one of the memory areas is not available it does not copy as much
data as it can, but up to 257 bytes less.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>