Speculative fix for nullptr program in QueryProgramiv

It is reported that an increase crash rate is seen on M81. This is a speculative fix based on that most crashes have calls from GrGLProgramBuilder::checkLinkStatus. Bug: chromium:991020 Change-Id: I549de9e0a0cccde8b9c68d706828963fe3f9bdf2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2095596Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Reviewed-by: Shrek Shao <shrekshao@google.com> Commit-Queue: Shrek Shao <shrekshao@google.com>

Speculative fix for nullptr program in QueryProgramiv
abcc536b · shrekshao · Commit Bot · 5d7ccc30 · abcc536b
Commit abcc536b authored Mar 09, 2020 by shrekshao Committed by Commit Bot Mar 10, 2020
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queryutils.cpp src/libANGLE/queryutils.cpp +1 -1

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--- a/src/libANGLE/queryutils.cpp
+++ b/src/libANGLE/queryutils.cpp
@@ -1195,7 +1195,7 @@ void QueryProgramiv(Context *context, const Program *program, GLenum pname, GLin
            *params = program->isFlaggedForDeletion();
            return;
        case GL_LINK_STATUS:
-            *params = program->isLinked();
+            *params = program ? program->isLinked() : false;
            return;
        case GL_COMPLETION_STATUS_KHR:
            if (context->isContextLost())