Run clippy

src/sys/syscall/mod.rs

@@ -124,13 +124,17 @@ pub fn dispatcher(
         number::ALLOC => {
             let size = arg1;
             let align = arg2;
-            service::alloc(size, align) as usize
+            unsafe {
+                service::alloc(size, align) as usize
+            }
         }
         number::FREE => {
             let ptr = arg1 as *mut u8;
             let size = arg2;
             let align = arg3;
-            service::free(ptr, size, align);
+            unsafe {
+                service::free(ptr, size, align);
+            }
             0
         }
         _ => {

src/sys/syscall/service.rs

@@ -184,15 +184,15 @@ pub fn accept(handle: usize) -> Result<IpAddress, ()> {
     Err(())
 }
 
-pub fn alloc(size: usize, align: usize) -> *mut u8 {
+pub unsafe fn alloc(size: usize, align: usize) -> *mut u8 {
     if let Ok(layout) = Layout::from_size_align(size, align) {
         unsafe { sys::process::alloc(layout) }
     } else {
         core::ptr::null_mut()
     }
 }
 
-pub fn free(ptr: *mut u8, size: usize, align: usize) {
+pub unsafe fn free(ptr: *mut u8, size: usize, align: usize) {
     if let Ok(layout) = Layout::from_size_align(size, align) {
         unsafe { sys::process::free(ptr, layout) };
     }

src/usr/find.rs

@@ -102,7 +102,7 @@ fn search_files(path: &str, options: &mut Options) {
             if file.is_dir() {
                 search_files(&file_path, options);
             } else if is_matching_file(&file_path, &options.file) {
-                if options.line == "" {
+                if options.line.is_empty() {
                     println!("{}", file_path.trim_start_matches(&options.trim));
                 } else {
                     print_matching_lines(&file_path, options);
@@ -116,7 +116,7 @@ fn search_files(path: &str, options: &mut Options) {
 }
 
 fn is_matching_file(path: &str, pattern: &str) -> bool {
-    let file = fs::filename(&path);
+    let file = fs::filename(path);
     let re = Regex::from_glob(pattern);
     re.is_match(file)
 }