diff --git a/usbsas-cmdexec/src/lib.rs b/usbsas-cmdexec/src/lib.rs
index 9a7ff9c0..2ee73c4f 100644
--- a/usbsas-cmdexec/src/lib.rs
+++ b/usbsas-cmdexec/src/lib.rs
@@ -165,13 +165,13 @@ impl RunningState {
 
     fn exec_cmd(&self, binpath: String, args: Vec<String>) -> Result<()> {
         info!("executing {} {:?}", binpath, args);
-        if let Ok(cmd) = Command::new(binpath)
+        match Command::new(binpath)
             .args(args)
             .stdout(Stdio::piped())
             .stderr(Stdio::piped())
             .spawn()
         {
-            match cmd.wait_with_output() {
+            Ok(cmd) => match cmd.wait_with_output() {
                 Ok(output) => {
                     if !output.status.success() {
                         error!("cmd failed");
@@ -183,14 +183,11 @@ impl RunningState {
                         }
                         return Err(Error::Exec("Cmd failed".into()));
                     }
+                    Ok(())
                 }
-                Err(err) => {
-                    return Err(Error::Exec(format!("Can't get cmd result: {err}")));
-                }
-            }
-            Ok(())
-        } else {
-            Err(Error::Exec("Failed to start child cmd".into()))
+                Err(err) => Err(Error::Exec(format!("Can't get cmd result: {err}"))),
+            },
+            Err(err) => Err(Error::Exec(format!("Failed to start child cmd: {err}"))),
         }
     }
 }
diff --git a/usbsas-usbsas/src/main.rs b/usbsas-usbsas/src/main.rs
index d38b235f..a6b09c65 100644
--- a/usbsas-usbsas/src/main.rs
+++ b/usbsas-usbsas/src/main.rs
@@ -2244,7 +2244,7 @@ struct OutFiles {
 
 fn main() -> Result<()> {
     let session_id = match env::var("USBSAS_SESSION_ID") {
-        Ok(id) => id.to_string(),
+        Ok(id) => id,
         Err(_) => {
             let id = uuid::Uuid::new_v4().simple().to_string();
             env::set_var("USBSAS_SESSION_ID", &id);