Fix minor bug in GPU name query on Android
diff --git a/src/gpu/gles2.c b/src/gpu/gles2.c
index a7ce08a..07f5f72 100644
--- a/src/gpu/gles2.c
+++ b/src/gpu/gles2.c
@@ -228,7 +228,7 @@
 	cpuinfo_log_debug("GL_VENDOR = \"%s\"", vendor);
 
 	const char* renderer = (const char*) gles2.get_string(GL_RENDERER);
-	if (vendor == NULL) {
+	if (renderer == NULL) {
 		cpuinfo_log_warning("failed to get GL_RENDERER for OpenGL ES2 context");
 		goto cleanup;
 	}