The patch 791ff39ae32a: "drm/i915: Live testing for context
execution" from Feb 13, 2017, leads to the following static checker
warning:
drivers/gpu/drm/i915/selftests/i915_gem_context.c:347 igt_ctx_exec()
error: 'file' dereferencing possible ERR_PTR()
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Fixes: 791ff39ae32a ("drm/i915: Live testing for context execution")
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
Cc: <drm-intel-fixes@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/selftests/i915_gem_context.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
index 3813a19a6179..1afb8b06e3e1 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
@@ -320,8 +320,8 @@ static unsigned long max_dwords(struct drm_i915_gem_object *obj)
static int igt_ctx_exec(void *arg)
{
struct drm_i915_private *i915 = arg;
- struct drm_file *file = mock_file(i915);
struct drm_i915_gem_object *obj;
+ struct drm_file *file;
IGT_TIMEOUT(end_time);
LIST_HEAD(objects);
unsigned long ncontexts, ndwords, dw;
@@ -333,6 +333,10 @@ static int igt_ctx_exec(void *arg)
* up in the expected pages of our obj.
*/
+ file = mock_file(i915);
+ if (IS_ERR(file))
+ return PTR_ERR(file);
+
mutex_lock(&i915->drm.struct_mutex);
ncontexts = 0;
--
2.11.0
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