camera: Don't crash if something's wrong

Signed-off-by: Daniel Schaefer <[email protected]>

Author: JohnAZoidberg

framework_lib/src/camera.rs

@@ -3,7 +3,7 @@ pub const FRAMEWORK13_16_2ND_GEN_PID: u16 = 0x001C;
 pub const FRAMEWORK12_PID: u16 = 0x001D;
 
 /// Get and print the firmware version of the camera
-pub fn check_camera_version() {
+pub fn check_camera_version() -> Result<(), rusb::Error> {
     for dev in rusb::devices().unwrap().iter() {
         let dev_descriptor = dev.device_descriptor().unwrap();
         if dev_descriptor.vendor_id() != FRAMEWORK_VID
@@ -19,11 +19,12 @@ pub fn check_camera_version() {
         }
         let handle = dev.open().unwrap();
 
-        let dev_descriptor = dev.device_descriptor().unwrap();
+        let dev_descriptor = dev.device_descriptor()?;
         let i_product = dev_descriptor
             .product_string_index()
             .and_then(|x| handle.read_string_descriptor_ascii(x).ok());
         println!("{}", i_product.unwrap_or_default());
         println!("  Firmware Version: {}", dev_descriptor.device_version());
     }
+    Ok(())
 }

framework_lib/src/commandline/mod.rs

@@ -473,7 +473,7 @@ fn print_versions(ec: &CrosEc) {
         }
     }
     #[cfg(feature = "rusb")]
-    check_camera_version();
+    let _ignore_err = check_camera_version();
 }
 
 fn print_esrt() {