tree 22e157baf879135b96cab1f436813c110168e2e5
parent 18d6624ec5e628fa35e46a5d69abfce3d5fea363
author Heiko Carstens <heiko.carstens@de.ibm.com> 1381745377 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1381837679 +0200

s390/compat,signal: fix return value of copy_siginfo_(to|from)_user32()

The return value of copy_siginfo_(to|from)_user32() gets passed to
user space, however we do not convert a positive return value from
copy_(to|from)_user to -EFAULT.
Therefore these functions (and the calling system calls) my incorrectly
return a positive number (bytes not copied) instead of -EFAULT.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>