[Piglit] [PATCH] sync_api: Check return value of glGetError.

[Vinson Lee]

Fixes Coverity unchecked return value defect.

Signed-off-by: Vinson Lee <vlee at vmware.com>
---
 tests/general/sync_api.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tests/general/sync_api.c b/tests/general/sync_api.c
index cd9d8c3..e2f9dc0 100644
--- a/tests/general/sync_api.c
+++ b/tests/general/sync_api.c
@@ -108,7 +108,7 @@ piglit_display(void)
 	glVertex3f( 0.0,  0.9, -30.0);
 	glEnd();
 
-	glGetError();
+	assert(glGetError() == 0);
 
 	sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
 	FAIL_ON_ERROR("glFenceSync");
-- 
1.7.7.3