Fix Clippy warnings

src/backend/mod.rs

@@ -98,7 +98,7 @@ impl Backend {
         }
     }
 
-    pub fn import_dmabuf(&mut self, dmabuf: &Dmabuf) -> Result<(), ()> {
+    pub fn import_dmabuf(&mut self, dmabuf: &Dmabuf) -> bool {
         match self {
             Backend::Tty(tty) => tty.import_dmabuf(dmabuf),
             Backend::Winit(winit) => winit.import_dmabuf(dmabuf),

src/backend/tty.rs

@@ -1113,20 +1113,20 @@ impl Tty {
         }
     }
 
-    pub fn import_dmabuf(&mut self, dmabuf: &Dmabuf) -> Result<(), ()> {
+    pub fn import_dmabuf(&mut self, dmabuf: &Dmabuf) -> bool {
         let mut renderer = match self.gpu_manager.single_renderer(&self.primary_render_node) {
             Ok(renderer) => renderer,
             Err(err) => {
                 debug!("error creating renderer for primary GPU: {err:?}");
-                return Err(());
+                return false;
             }
         };
 
         match renderer.import_dmabuf(dmabuf, None) {
-            Ok(_texture) => Ok(()),
+            Ok(_texture) => true,
             Err(err) => {
                 debug!("error importing dmabuf: {err:?}");
-                Err(())
+                false
             }
         }
     }

src/backend/winit.rs

@@ -211,12 +211,12 @@ impl Winit {
         renderer.set_debug_flags(renderer.debug_flags() ^ DebugFlags::TINT);
     }
 
-    pub fn import_dmabuf(&mut self, dmabuf: &Dmabuf) -> Result<(), ()> {
+    pub fn import_dmabuf(&mut self, dmabuf: &Dmabuf) -> bool {
         match self.backend.renderer().import_dmabuf(dmabuf, None) {
-            Ok(_texture) => Ok(()),
+            Ok(_texture) => true,
             Err(err) => {
                 debug!("error importing dmabuf: {err:?}");
-                Err(())
+                false
             }
         }
     }

src/config_error_notification.rs

@@ -167,6 +167,12 @@ impl ConfigErrorNotification {
     }
 }
 
+impl Default for ConfigErrorNotification {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 fn render(scale: i32, created_path: Option<&Path>) -> anyhow::Result<MemoryRenderBuffer> {
     let _span = tracy_client::span!("config_error_notification::render");
 

src/handlers/mod.rs

@@ -229,13 +229,10 @@ impl DmabufHandler for State {
         dmabuf: Dmabuf,
         notifier: ImportNotifier,
     ) {
-        match self.backend.import_dmabuf(&dmabuf) {
-            Ok(_) => {
-                let _ = notifier.successful::<State>();
-            }
-            Err(_) => {
-                notifier.failed();
-            }
+        if self.backend.import_dmabuf(&dmabuf) {
+            let _ = notifier.successful::<State>();
+        } else {
+            notifier.failed();
         }
     }
 }