[Intel-gfx] [PATCH] drm/i915/selftests: Initialise request to silence a compiler

[Chris Wilson]

With an old (4.7.3 on 32bit) gcc, it emits a warning for

In file included from drivers/gpu/drm/i915/i915_request.c:1425:0:
drivers/gpu/drm/i915/selftests/i915_request.c: In function ‘live_nop_request’:
drivers/gpu/drm/i915/selftests/i915_request.c:380:21: error: ‘request’ may be used uninitialized in this function [-Werror=maybe-uninitialized]

Silence it by just setting it to NULL on initialisation.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/selftests/i915_request.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index f5d00332bb31..63cd9486cc13 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -342,9 +342,9 @@ static int live_nop_request(void *arg)
 	mutex_lock(&i915->drm.struct_mutex);
 
 	for_each_engine(engine, i915, id) {
-		IGT_TIMEOUT(end_time);
-		struct i915_request *request;
+		struct i915_request *request = NULL;
 		unsigned long n, prime;
+		IGT_TIMEOUT(end_time);
 		ktime_t times[2] = {};
 
 		err = begin_live_test(&t, i915, __func__, engine->name);
-- 
2.17.1