diff --git a/src/libs/kata-sys-util/src/cpu.rs b/src/libs/kata-sys-util/src/cpu.rs
index 514ad35320..938f5be424 100644
--- a/src/libs/kata-sys-util/src/cpu.rs
+++ b/src/libs/kata-sys-util/src/cpu.rs
@@ -394,7 +394,7 @@ mod tests {
 
         for (i, d) in tests.iter().enumerate() {
             let msg = format!("test[{}]: {:?}", i, d);
-            let result = contains_cpu_flag(&d.cpu_flags_vec, d.cpu_flag);
+            let result = contains_cpu_flag(d.cpu_flags_vec, d.cpu_flag);
             let msg = format!("{}, result: {:?}", msg, result);
 
             if d.result.is_ok() {
diff --git a/src/libs/kata-sys-util/src/lib.rs b/src/libs/kata-sys-util/src/lib.rs
index e91704b0b4..531883a398 100644
--- a/src/libs/kata-sys-util/src/lib.rs
+++ b/src/libs/kata-sys-util/src/lib.rs
@@ -48,11 +48,11 @@ pub fn check_kernel_cmd_line(
 
     let check_fn = if search_values.is_empty() {
         |param: &str, search_param: &str, _search_values: &[&str]| {
-            return param.eq_ignore_ascii_case(search_param);
+            param.eq_ignore_ascii_case(search_param)
         }
     } else {
         |param: &str, search_param: &str, search_values: &[&str]| {
-            let split: Vec<&str> = param.splitn(2, "=").collect();
+            let split: Vec<&str> = param.splitn(2, '=').collect();
             if split.len() < 2 || split[0] != search_param {
                 return false;
             }