nit: validate MsgAssignConsumerKey

x/ccv/provider/types/errors.go

@@ -11,7 +11,7 @@ var (
 	ErrUnknownConsumerChainId           = errorsmod.Register(ModuleName, 3, "no consumer chain with this chain id")
 	ErrUnknownConsumerChannelId         = errorsmod.Register(ModuleName, 4, "no consumer chain with this channel id")
 	ErrInvalidConsumerConsensusPubKey   = errorsmod.Register(ModuleName, 5, "empty consumer consensus public key")
-	ErrBlankConsumerChainID             = errorsmod.Register(ModuleName, 6, "consumer chain id must not be blank")
+	ErrInvalidConsumerChainID           = errorsmod.Register(ModuleName, 6, "invalid consumer chain id")
 	ErrConsumerKeyNotFound              = errorsmod.Register(ModuleName, 7, "consumer key not found")
 	ErrNoValidatorConsumerAddress       = errorsmod.Register(ModuleName, 8, "error getting validator consumer address")
 	ErrNoValidatorProviderAddress       = errorsmod.Register(ModuleName, 9, "error getting validator provider address")

x/ccv/provider/types/msg.go

@@ -72,14 +72,13 @@ func (msg MsgAssignConsumerKey) GetSignBytes() []byte {
 // ValidateBasic implements the sdk.Msg interface.
 func (msg MsgAssignConsumerKey) ValidateBasic() error {
 	if strings.TrimSpace(msg.ChainId) == "" {
-		return ErrBlankConsumerChainID
+		return errorsmod.Wrapf(ErrInvalidConsumerChainID, "chainId cannot be blank")
 	}
 	// It is possible to assign keys for consumer chains that are not yet approved.
 	// This can only be done by a signing validator, but it is still sensible
 	// to limit the chainID size to prevent abuse.
-
 	if 128 < len(msg.ChainId) {
-		return ErrBlankConsumerChainID
+		return errorsmod.Wrapf(ErrInvalidConsumerChainID, "chainId cannot exceed 128 length")
 	}
 	_, err := sdk.ValAddressFromBech32(msg.ProviderAddr)
 	if err != nil {