From 12bae23507129a7337378e6433bff6f8696bdb45 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Fri, 27 Oct 2006 12:39:22 +0200 Subject: [S390] uaccess error handling. Consider return values for all user space access function and return -EFAULT on error. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/compat_linux.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/s390/kernel/compat_linux.c') diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c index 2001767e1dc7..5b33f823863a 100644 --- a/arch/s390/kernel/compat_linux.c +++ b/arch/s390/kernel/compat_linux.c @@ -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; } -- cgit v1.2.3