Clippy and fmt fix

Author: Lucas Paixão

src/buf/fixed/plumbing/registry.rs

@@ -140,10 +140,10 @@ impl<T: IoBufMut> Drop for Registry<T> {
           // from Registry ownership, rather than deallocate.
           unsafe { self.buffers[i].set_init(*init_len) };
         }
-        BufState::CheckedOut => { 
+        BufState::CheckedOut => {
           //unreachable!("all buffers must be checked in")
           println!("Bug");
-        },
+        }
       }
     }
 

src/buf/fixed/registry.rs

@@ -1,5 +1,5 @@
-use super::FixedBuf;
 use super::plumbing;
+use super::FixedBuf;
 use std::cell::RefCell;
 
 use crate::buf::fixed::shared::{process, register, unregister};

src/runtime/driver/mod.rs

@@ -187,7 +187,7 @@ impl Driver {
   }
 
   pub(crate) fn unregister_buffers(&mut self) -> io::Result<()> {
-    if let Some(_) = &self.fixed_buffers.take() {
+    if self.fixed_buffers.take().is_some() {
       self.uring.submitter().unregister_buffers()?;
       return Ok(());
     }

src/runtime/driver/op/mod.rs

@@ -39,7 +39,7 @@ where
 
   /// Submit an operation to the driver for batched entry to the kernel.
   pub fn submit(self) -> Pin<Box<Op<InFlightOneshot<D, T>, OneshotCQE>>> {
-    CONTEXT.with(|x| self.submit_with_driver(&**x.handle()))
+    CONTEXT.with(|x| self.submit_with_driver(&x.handle()))
   }
 
   fn submit_with_driver(

tests/fs_file.rs

@@ -345,7 +345,7 @@ fn assert_invalid_fd(fd: RawFd) {
   let mut buf = vec![];
 
   match f.read_to_end(&mut buf) {
-    Err(ref e) if e.raw_os_error() == Some(libc::EBADF) => {},
+    Err(ref e) if e.raw_os_error() == Some(libc::EBADF) => {}
     res => panic!("assert_invalid_fd finds for fd {:?}, res = {:?}", fd, res),
   }
 }