remove duplicate error variant

src/ecss/mod.rs

@@ -153,7 +153,6 @@ pub enum RealPfc {
 pub enum PusError {
     VersionNotSupported(PusVersion),
     IncorrectCrc(u16),
-    RawDataTooShort(usize),
     NoRawData,
     /// CRC16 needs to be calculated first
     CrcCalculationMissing,
@@ -169,12 +168,6 @@ impl Display for PusError {
             PusError::IncorrectCrc(crc) => {
                 write!(f, "crc16 {crc:#04x} is incorrect")
             }
-            PusError::RawDataTooShort(size) => {
-                write!(
-                    f,
-                    "deserialization error, provided raw data with size {size} too short"
-                )
-            }
             PusError::NoRawData => {
                 write!(f, "no raw data provided")
             }
@@ -218,7 +211,11 @@ pub trait PusPacket: CcsdsPacket {
 
 pub(crate) fn crc_from_raw_data(raw_data: &[u8]) -> Result<u16, PusError> {
     if raw_data.len() < 2 {
-        return Err(PusError::RawDataTooShort(raw_data.len()));
+        return Err(ByteConversionError::FromSliceTooSmall {
+            found: raw_data.len(),
+            expected: 2,
+        }
+        .into());
     }
     Ok(u16::from_be_bytes(
         raw_data[raw_data.len() - 2..raw_data.len()]
@@ -254,11 +251,14 @@ pub(crate) fn crc_procedure(
 pub(crate) fn user_data_from_raw(
     current_idx: usize,
     total_len: usize,
-    raw_data_len: usize,
     slice: &[u8],
 ) -> Result<&[u8], PusError> {
     match current_idx {
-        _ if current_idx > total_len - 2 => Err(PusError::RawDataTooShort(raw_data_len)),
+        _ if current_idx > total_len - 2 => Err(ByteConversionError::FromSliceTooSmall {
+            found: total_len - 2,
+            expected: current_idx,
+        }
+        .into()),
         _ => Ok(&slice[current_idx..total_len - 2]),
     }
 }