[libcamera-devel] [PATCH] ipa: rpi: Fix segfault when parsing invalid json file

[Naushir Patuck]

If the json file parsing failed due to a malformed file, the root
pointer would be null. This was not tested and caused a segfault when
trying to use the pointer to retrive the version key.

Fix this by bailing out early if the parser returns a null pointer.

Signed-off-by: Naushir Patuck <naush at raspberrypi.com>
---
 src/ipa/rpi/controller/controller.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/ipa/rpi/controller/controller.cpp b/src/ipa/rpi/controller/controller.cpp
index fa1721130783..14d245da2ce7 100644
--- a/src/ipa/rpi/controller/controller.cpp
+++ b/src/ipa/rpi/controller/controller.cpp
@@ -56,6 +56,9 @@ int Controller::read(char const *filename)
 	}
 
 	std::unique_ptr<YamlObject> root = YamlParser::parse(file);
+	if (!root)
+		return -EINVAL;
+
 	double version = (*root)["version"].get<double>(1.0);
 	target_ = (*root)["target"].get<std::string>("bcm2835");
 
-- 
2.34.1