fix: Clippy lints

esp-hal/src/hmac.rs

@@ -151,7 +151,7 @@ impl<'d> Hmac<'d> {
 
     /// Process the msg block after block
     pub fn update<'a>(&mut self, msg: &'a [u8]) -> &'a [u8] {
-        while (&mut *self).is_busy() {}
+        while (*self).is_busy() {}
 
         self.next_command();
 
@@ -162,7 +162,7 @@ impl<'d> Hmac<'d> {
 
     /// Finalizes the HMAC computation and retrieves the resulting hash output.
     pub fn finalize(&mut self, output: &mut [u8]) {
-        while (&mut *self).is_busy() {}
+        while (*self).is_busy() {}
 
         self.next_command();
 

esp-hal/src/sha.rs

@@ -373,7 +373,7 @@ impl<'d, A: ShaAlgorithm, S: BorrowMut<Sha<'d>>> ShaDigest<'d, A, S> {
 
     fn write_data<'a>(&mut self, incoming: &'a [u8]) -> &'a [u8] {
         if self.message_buffer_is_full {
-            while (&*&*&*self).is_busy() {
+            while (*self).is_busy() {
                 // The message buffer is full and the hardware is still
                 // processing the previous message. There's
                 // nothing to be done besides wait for the hardware.