Fix gradient checkpointing bug in BlipText (#21978)

Make Format

src/transformers/models/blip/modeling_blip_text.py

@@ -393,6 +393,12 @@ class BlipTextEncoder(nn.Module):
         output_hidden_states=False,
         return_dict=True,
     ):
+        if self.gradient_checkpointing and self.training:
+            if use_cache:
+                logger.warn(
+                    "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
+                )
+                use_cache = False
         all_hidden_states = () if output_hidden_states else None
         all_self_attentions = () if output_attentions else None
         all_cross_attentions = () if output_attentions and self.config.is_decoder else None
@@ -408,11 +414,6 @@ class BlipTextEncoder(nn.Module):
             past_key_value = past_key_values[i] if past_key_values is not None else None
 
             if self.gradient_checkpointing and self.training:
-                if use_cache:
-                    logger.warn(
-                        "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
-                    )
-                    use_cache = False
 
                 def create_custom_forward(module):
                     def custom_forward(*inputs):