diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_context.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_context.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.h b/drivers/gpu/drm/i915/gem/i915_gem_context.h index 3ae61a355d87..f1d884d304bd 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.h @@ -192,12 +192,16 @@ i915_gem_context_unlock_engines(struct i915_gem_context *ctx) static inline struct intel_context * i915_gem_context_get_engine(struct i915_gem_context *ctx, unsigned int idx) { - struct intel_context *ce = ERR_PTR(-EINVAL); + struct intel_context *ce; rcu_read_lock(); { struct i915_gem_engines *e = rcu_dereference(ctx->engines); - if (likely(idx < e->num_engines && e->engines[idx])) + if (unlikely(!e)) /* context was closed! */ + ce = ERR_PTR(-ENOENT); + else if (likely(idx < e->num_engines && e->engines[idx])) ce = intel_context_get(e->engines[idx]); + else + ce = ERR_PTR(-EINVAL); } rcu_read_unlock(); return ce; @@ -207,7 +211,6 @@ static inline void i915_gem_engines_iter_init(struct i915_gem_engines_iter *it, struct i915_gem_engines *engines) { - GEM_BUG_ON(!engines); it->engines = engines; it->idx = 0; } |