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[S390] uaccess error handling.

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Consider return values for all user space access function and
return -EFAULT on error.

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
2006-10-27 12:39:22 +02:00
committed by Martin Schwidefsky
parent c2b1449bd1
commit 12bae23507
4 changed files with 28 additions and 20 deletions
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4
arch/s390/kernel/compat_linux.c
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@@ -757,7 +757,9 @@ asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
put_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)))
error = -EFAULT;
}
copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
if (copy_to_user(args->__unused, tmp.__unused,
sizeof(tmp.__unused)))
error = -EFAULT;
}
return error;
}