[media] atomisp: unify sh_css_hmm_buffer_record_acquire

The ISP2401 version of this function returns a pointer to the buffer, whilst
the ISP2400 version returns a boolean if a slot is found. We can trivially
unify the code to use the ISP2401 version.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css.c

@@ -375,13 +375,8 @@ sh_css_hmm_buffer_record_uninit(void);
 static void
 sh_css_hmm_buffer_record_reset(struct sh_css_hmm_buffer_record *buffer_record);
 
-#ifndef ISP2401
-static bool
-sh_css_hmm_buffer_record_acquire(struct ia_css_rmgr_vbuf_handle *h_vbuf,
-#else
 static struct sh_css_hmm_buffer_record
 *sh_css_hmm_buffer_record_acquire(struct ia_css_rmgr_vbuf_handle *h_vbuf,
-#endif
 			enum ia_css_buffer_type type,
 			hrt_address kernel_ptr);
 
@@ -4423,21 +4418,9 @@ ia_css_pipe_enqueue_buffer(struct ia_css_pipe *pipe,
 	}
 
 	if (return_err == IA_CSS_SUCCESS) {
-#ifndef ISP2401
-		bool found_record = false;
-		found_record = sh_css_hmm_buffer_record_acquire(
-#else
-		struct sh_css_hmm_buffer_record *hmm_buffer_record = NULL;
-
-		hmm_buffer_record = sh_css_hmm_buffer_record_acquire(
-#endif
+		if (sh_css_hmm_buffer_record_acquire(
 				h_vbuf, buf_type,
-					HOST_ADDRESS(ddr_buffer.kernel_ptr));
-#ifndef ISP2401
-		if (found_record == true) {
-#else
-		if (hmm_buffer_record) {
-#endif
+				HOST_ADDRESS(ddr_buffer.kernel_ptr))) {
 			IA_CSS_LOG("send vbuf=%p", h_vbuf);
 		} else {
 			return_err = IA_CSS_ERR_INTERNAL_ERROR;
@@ -11139,23 +11122,14 @@ sh_css_hmm_buffer_record_reset(struct sh_css_hmm_buffer_record *buffer_record)
 	buffer_record->kernel_ptr = 0;
 }
 
-#ifndef ISP2401
-static bool
-sh_css_hmm_buffer_record_acquire(struct ia_css_rmgr_vbuf_handle *h_vbuf,
-#else
 static struct sh_css_hmm_buffer_record
 *sh_css_hmm_buffer_record_acquire(struct ia_css_rmgr_vbuf_handle *h_vbuf,
-#endif
 			enum ia_css_buffer_type type,
 			hrt_address kernel_ptr)
 {
 	int i;
 	struct sh_css_hmm_buffer_record *buffer_record = NULL;
-#ifndef ISP2401
-	bool found_record = false;
-#else
 	struct sh_css_hmm_buffer_record *out_buffer_record = NULL;
-#endif
 
 	assert(h_vbuf != NULL);
 	assert((type > IA_CSS_BUFFER_TYPE_INVALID) && (type < IA_CSS_NUM_DYNAMIC_BUFFER_TYPE));
@@ -11168,21 +11142,13 @@ static struct sh_css_hmm_buffer_record
 			buffer_record->type = type;
 			buffer_record->h_vbuf = h_vbuf;
 			buffer_record->kernel_ptr = kernel_ptr;
-#ifndef ISP2401
-			found_record = true;
-#else
 			out_buffer_record = buffer_record;
-#endif
 			break;
 		}
 		buffer_record++;
 	}
 
-#ifndef ISP2401
-	return found_record;
-#else
 	return out_buffer_record;
-#endif
 }
 
 static struct sh_css_hmm_buffer_record