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-rw-r--r--arch/s390/kernel/compat_linux.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 2001767e1dc..5b33f823863 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;
}