dm: Use uclass_first_device_err() where it is useful

Use this new function in places where it simplifies the code.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/interrupts.c b/arch/x86/cpu/interrupts.c
index c40200b..10dc4d4 100644
--- a/arch/x86/cpu/interrupts.c
+++ b/arch/x86/cpu/interrupts.c
@@ -249,7 +249,7 @@
 	int ret;
 
 	/* Try to set up the interrupt router, but don't require one */
-	ret = uclass_first_device(UCLASS_IRQ, &dev);
+	ret = uclass_first_device_err(UCLASS_IRQ, &dev);
 	if (ret && ret != -ENODEV)
 		return ret;