From 395c23946b44b071cc376f488a3205bedb02b382 Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Wed, 9 May 2018 12:43:55 +0100
Subject: tests/gem_userptr_blits: test zero user_size

Check that the kernel rejects a zero user_size.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 tests/gem_userptr_blits.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'tests')

diff --git a/tests/gem_userptr_blits.c b/tests/gem_userptr_blits.c
index 849054ad..7e3b6ef3 100644
--- a/tests/gem_userptr_blits.c
+++ b/tests/gem_userptr_blits.c
@@ -442,6 +442,14 @@ static int test_input_checking(int fd)
 	ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_USERPTR, &userptr);
 	igt_assert_neq(ret, 0);
 
+	/* Zero user_size. */
+	memset(&userptr, 0, sizeof(userptr));
+	userptr.user_ptr = 0;
+	userptr.user_size = 0;
+	userptr.flags = 0;
+	ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_USERPTR, &userptr);
+	igt_assert_neq(ret, 0);
+
 	return 0;
 }
 
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