small bugfix at StableDiffusionDepth2ImgPipeline call to check_inputs and batch size calculation (huggingface#2423)

small bugfix in call to check_inputs and batch size calculation

Co-authored-by: mishka <[email protected]>

Author: mikegarts

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_depth2img.py

@@ -587,13 +587,26 @@ def __call__(
             (nsfw) content, according to the `safety_checker`.
         """
         # 1. Check inputs
-        self.check_inputs(prompt, strength, callback_steps)
+        self.check_inputs(
+            prompt,
+            strength,
+            callback_steps,
+            negative_prompt=negative_prompt,
+            prompt_embeds=prompt_embeds,
+            negative_prompt_embeds=negative_prompt_embeds,
+        )
 
         if image is None:
             raise ValueError("`image` input cannot be undefined.")
 
         # 2. Define call parameters
-        batch_size = 1 if isinstance(prompt, str) else len(prompt)
+        if prompt is not None and isinstance(prompt, str):
+            batch_size = 1
+        elif prompt is not None and isinstance(prompt, list):
+            batch_size = len(prompt)
+        else:
+            batch_size = prompt_embeds.shape[0]
+
         device = self._execution_device
         # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2)
         # of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1`