fix coverity issues (#3753)

Author: blzheng

intel_extension_for_pytorch/quantization/_quantize.py

@@ -238,7 +238,7 @@ def _float_module(cls):
  LinearLayer = deepspeed_modules[1]
  _FLOAT_MODULE.extend([LinearLayer])
 
- if len(deepspeed_modules) > 3:
+ if deepspeed_modules is not None and len(deepspeed_modules) > 3:
  for module in deepspeed_modules[3:]:
  if issubclass(module, LinearLayer):
  _FLOAT_MODULE.extend([module])

intel_extension_for_pytorch/transformers/models/reference/models.py

@@ -1309,6 +1309,7 @@ def OPTDecoder_forward(
  # embed positions
 
  if position_ids is None:
+ assert attention_mask is not None
  position_ids = torch.cumsum(attention_mask, dim=1)
  position_ids = (position_ids * attention_mask - 1).long()
  # cut positions if `past_key_values_length` is > 0

tests/cpu/hf_configs/phi4/speech_conformer_encoder.py

@@ -885,6 +885,7 @@ def _bucket_relative_position(self, relative_position):
  # this is a placeholder (isn't tested, likely buggy) using HuggingFace implem as a reference
  # this also needs to be extended to support asymmetric +/- ve positions
  relative_buckets = 0
+ num_buckets = self.num_buckets
  if not self.causal:
  num_buckets //= 2
  relative_buckets += (relative_position > 0).to(torch.long) * num_buckets
@@ -893,7 +894,6 @@ def _bucket_relative_position(self, relative_position):
  relative_position = -torch.min(
  relative_position, torch.zeros_like(relative_position)
  )
- num_buckets = self.num_buckets
  # now relative_position is in the range [0, inf)
 
  # half of the buckets are for exact increments in positions