On 22/01/16 12:19, Dave Gordon wrote:
In the error-handling paths of i915_gem_do_execbuffer() and
intel_crtc_page_flip(), the local pointer-to-request variables
were expected to be either valid pointers or NULL. Since
2682708 drm/i915: simplify allocation of driver-internal requests
they could also be ERR_PTR() values, so the tests need to be
updated to accommodate this case.
Signed-off-by: Dave Gordon <david.s.gor...@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 2 +-
drivers/gpu/drm/i915/intel_display.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
Not sure if CI will pick up a new patch in an old series.
Anyway:
Reviewed-by: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
Regards,
Tvrtko
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 2dc08ce..a7bd555 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1654,7 +1654,7 @@ static bool only_mappable_for_reloc(unsigned int flags)
* must be freed again. If it was submitted then it is being tracked
* on the active request list and no clean up is required here.
*/
- if (ret && req)
+ if (ret && !IS_ERR_OR_NULL(req))
i915_gem_request_cancel(req);
mutex_unlock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 8104511..b88cdac 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11726,7 +11726,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
cleanup_unpin:
intel_unpin_fb_obj(fb, crtc->primary->state);
cleanup_pending:
- if (request)
+ if (!IS_ERR_OR_NULL(request))
i915_gem_request_cancel(request);
atomic_dec(&intel_crtc->unpin_work_count);
mutex_unlock(&dev->struct_mutex);
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