From: Bernhard Beschow <shentey@gmail.com>
Date: Sun, 16 Jan 2022 11:46:49 +0000 (+0100)
Subject: softmmu: Provide a clue as to why device tree loading failed
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d4fae97d8fb50d7e3387458af24c85bac965957d;p=qemu.git

softmmu: Provide a clue as to why device tree loading failed

fdt_open_into() obligingly returns an error code in case the operation
failed. So be obliging as well and use it in the error message.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220116114649.40859-1-shentey@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---

diff --git a/softmmu/device_tree.c b/softmmu/device_tree.c
index 3965c834ca..31d1066940 100644
--- a/softmmu/device_tree.c
+++ b/softmmu/device_tree.c
@@ -60,7 +60,8 @@ void *create_device_tree(int *sizep)
     }
     ret = fdt_open_into(fdt, fdt, *sizep);
     if (ret) {
-        error_report("Unable to copy device tree in memory");
+        error_report("%s: Unable to copy device tree into memory: %s",
+                     __func__, fdt_strerror(ret));
         exit(1);
     }
 
@@ -104,7 +105,8 @@ void *load_device_tree(const char *filename_path, int *sizep)
 
     ret = fdt_open_into(fdt, fdt, dt_size);
     if (ret) {
-        error_report("Unable to copy device tree in memory");
+        error_report("%s: Unable to copy device tree into memory: %s",
+                     __func__, fdt_strerror(ret));
         goto fail;
     }