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drm/i915: Drop mutex after successful kref_put_mutex() 

The kref_put_mutex() returns with the mutex held after freeing the
object - so we must remember to drop it...

Fixes: 69df05e11a ("drm/i915: Simplify releasing context reference")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161219101357.28140-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Chris Wilson 2016-12-19 10:13:57 +00:00
parent f73e73999d
commit bf51997c91
1 changed files with 4 additions and 3 deletions
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7
drivers/gpu/drm/i915/i915_drv.h
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@ -3520,9 +3520,10 @@ static inline void i915_gem_context_put(struct i915_gem_context *ctx)
static inline void i915_gem_context_put_unlocked(struct i915_gem_context *ctx)
{
kref_put_mutex(&ctx->ref,
i915_gem_context_free,
&ctx->i915->drm.struct_mutex);
struct mutex *lock = &ctx->i915->drm.struct_mutex;
if (kref_put_mutex(&ctx->ref, i915_gem_context_free, lock))
mutex_unlock(lock);
}
static inline struct intel_timeline *