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authorNiranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>2022-06-14 21:43:46 +0300
committerRamalingam C <ramalingam.c@intel.com>2022-06-27 21:16:35 +0300
commit7307e91bfcd0e3f123aab01b30557f93923b6d73 (patch)
tree3dd10c668bf173d4ada2fcf10921d5f819e66a6b /drivers/gpu/drm/i915/i915_request.h
parent7d8097073caa334ed6187a964645335324231e01 (diff)
downloadlinux-7307e91bfcd0e3f123aab01b30557f93923b6d73.tar.xz
drm/i915: Do not access rq->engine without a reference
In i915_fence_get_driver_name(), user may not hold a reference to rq->engine. Hence do not access it. Instead, store required device private pointer in 'rq->i915' and use it. Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Suggested-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Ramalingam C <ramalingam.c@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220614184348.23746-2-ramalingam.c@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_request.h')
-rw-r--r--drivers/gpu/drm/i915/i915_request.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index 28b1f9db5487..47041ec68df8 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -196,6 +196,8 @@ struct i915_request {
struct dma_fence fence;
spinlock_t lock;
+ struct drm_i915_private *i915;
+
/**
* Context and ring buffer related to this request
* Contexts are refcounted, so when this request is associated with a