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s390/uaccess: remove copy_from_user_real()

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There is no user left, so remove it.
It was also potentially broken, since the function didn't clear destination
memory if copy_from_user() failed. Which would allow for information leaks.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2014-02-24 16:18:55 +01:00
committed by Martin Schwidefsky
parent 9499934f70
commit 823002023d
2 changed files with 0 additions and 27 deletions
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arch/s390/include/asm/uaccess.h
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@@ -344,6 +344,5 @@ static inline unsigned long __must_check clear_user(void __user *to, unsigned lo
}
int copy_to_user_real(void __user *dest, void *src, unsigned long count);
int copy_from_user_real(void *dest, void __user *src, unsigned long count);
#endif /* __S390_UACCESS_H */