[Intel-gfx] [PATCH i-g-t] tests/drm_read: drm_read fails for subtest invalid-buffer on chrome

[Intel-gfx] [PATCH i-g-t] tests/drm_read: drm_read fails for subtest invalid-buffer on chrome

[Vidya Srinivas]

Chrome platforms is unable to handle reading from -1.
It terminates the test after reporting buffer overflow.
Hence, changed the address for invalid buffer to NULL instead of -1.
With this change, errno becomes EINTR when reading from NULL
location. To accomodate, also changing the check of errno to EINTR
instead of EFAULT

Change-Id: I5f844af087c9826fcbcfbe301f0df5f727cb013b
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
---
 tests/drm_read.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/drm_read.c b/tests/drm_read.c
index ccf9d822fd8d..a8816bc1e587 100644
--- a/tests/drm_read.c
+++ b/tests/drm_read.c
@@ -106,8 +106,8 @@ static void test_invalid_buffer(int in)
 
 	alarm(1);
 
-	igt_assert_eq(read(fd, (void *)-1, 4096), -1);
-	igt_assert_eq(errno, EFAULT);
+	igt_assert_eq(read(fd, (void *)NULL, 4096), -1);
+	igt_assert_eq(errno, EINTR);
 
 	teardown(fd);
 }
-- 
2.7.4

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