fix missing addref() in ocl::Context::create(str)

diablodale · alalek · commit 705e7b207c4c · 2020-11-24T14:08:29.000+03:00
backported fix from PR 18907
diff --git a/modules/core/src/ocl.cpp b/modules/core/src/ocl.cpp
@@ -2437,6 +2437,7 @@ struct Context::Impl
         if (impl)
         {
             CV_LOG_INFO(NULL, "OpenCL: reuse context@" << impl->contextId << " for configuration: " << configuration)
+            impl->addref();
             return impl;
         }
 

Original file line number	Diff line number	Diff line change
`@@ -2437,6 +2437,7 @@ struct Context::Impl`
`2437`	`2437`	`if (impl)`
`2438`	`2438`	`{`
`2439`	`2439`	`CV_LOG_INFO(NULL, "OpenCL: reuse context@" << impl->contextId << " for configuration: " << configuration)`
	`2440`	`+ impl->addref();`
`2440`	`2441`	`return impl;`
`2441`	`2442`	`}`
`2442`	`2443`