gpu: ipu-v3: Use ERR_CAST instead of ERR_PTR(PTR_ERR())

Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...)).

Generated by: scripts/coccinelle/api/err_cast.cocci

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

drivers/gpu/ipu-v3/ipu-image-convert.c

@@ -1617,7 +1617,7 @@ ipu_image_convert(struct ipu_soc *ipu, enum ipu_ic_task ic_task,
 	ctx = ipu_image_convert_prepare(ipu, ic_task, in, out, rot_mode,
 					complete, complete_context);
 	if (IS_ERR(ctx))
-		return ERR_PTR(PTR_ERR(ctx));
+		return ERR_CAST(ctx);
 
 	run = kzalloc(sizeof(*run), GFP_KERNEL);
 	if (!run) {