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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2014-02-24 16:18:55 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-02-24 17:14:00 +0100 |
| commit | 823002023da6d9124ed63bc622267c15ab2a7347 (patch) | |
| tree | cd2b74ff1b6844cca9821d63dfd7180b0a452c06 /arch/s390/include/asm/uaccess.h | |
| parent | s390/sclp_early: Return correct HSA block count also for zero (diff) | |
| download | linux-dev-823002023da6d9124ed63bc622267c15ab2a7347.tar.xz linux-dev-823002023da6d9124ed63bc622267c15ab2a7347.zip | |
s390/uaccess: remove copy_from_user_real()
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>
Diffstat (limited to 'arch/s390/include/asm/uaccess.h')
| -rw-r--r-- | arch/s390/include/asm/uaccess.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index 2710b41eed22..4133b3f72fb0 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -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 */ |