diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 0b134c220948b9f3151abda150ce47ac6fd6aa35..4c158faa3075c637b3774851479dec5530ad8fb4 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -1388,14 +1388,10 @@ static int cfset_all_read(unsigned long arg, struct cfset_request *req)
 
 static long cfset_ioctl_read(unsigned long arg, struct cfset_request *req)
 {
-	struct s390_ctrset_read read;
 	int ret = -ENODATA;
 
-	if (req && req->ctrset) {
-		if (copy_from_user(&read, (char __user *)arg, sizeof(read)))
-			return -EFAULT;
+	if (req && req->ctrset)
 		ret = cfset_all_read(arg, req);
-	}
 	return ret;
 }