scripts/lib/bsp/engine.py: Add error message for wrong input file

Format of properties file is expected to be a simple json detailing properties, if this format fails an exception is thrown. This patch adds a graceful error message to the case when the properties file has a wrong format.

[YOCTO #9750]

(From meta-yocto rev: 7e543aa19d0d4b2112e6316783fb31b76df3493e)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/scripts/lib/bsp/engine.py b/scripts/lib/bsp/engine.py
index 85f095ebcb..760efc7a60 100644
--- a/scripts/lib/bsp/engine.py
+++ b/scripts/lib/bsp/engine.py
@@ -1547,11 +1547,13 @@ def yocto_common_create(machine, target, scripts_path, layer_output_dir, codedum
     if properties_file:
         try:
             infile = open(properties_file, "r")
+            properties = json.load(infile)
         except IOError:
             print("Couldn't open properties file %s for reading, exiting" % properties_file)
             sys.exit(1)
-
-        properties = json.load(infile)
+        except ValueError:
+            print("Wrong format on properties file %s, exiting" % properties_file)
+            sys.exit(1)
 
     if properties_str and not properties:
         properties = json.loads(properties_str)