From d78786f17f03109c3e9c7043b1b63f947afb0ee0 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 8 May 2024 06:15:09 +0200
Subject: Merging upstream version 4.19.282.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/macintosh/macio-adb.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'drivers/macintosh/macio-adb.c')

diff --git a/drivers/macintosh/macio-adb.c b/drivers/macintosh/macio-adb.c
index eb3adfb7f..172a8b18c 100644
--- a/drivers/macintosh/macio-adb.c
+++ b/drivers/macintosh/macio-adb.c
@@ -106,6 +106,10 @@ int macio_init(void)
 		return -ENXIO;
 	}
 	adb = ioremap(r.start, sizeof(struct adb_regs));
+	if (!adb) {
+		of_node_put(adbs);
+		return -ENOMEM;
+	}
 
 	out_8(&adb->ctrl.r, 0);
 	out_8(&adb->intr.r, 0);
-- 
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