From 5b254c597871fa638a1ba0621f545e303090e970 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 15 Sep 2014 14:55:24 +0200 Subject: [PATCH] drm/i915: Clarify gpu_error.lock locking i915_capture_error_state can be called from all kinds of contexts, so needs the full irqsave dance. But the other two places to grab and release the error state are only called from process context. So simplify them to the plaine _irq spinlock versions to clarify the locking semantics. Cc: Mika Kuoppala Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gpu_error.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 2c87a797213f..386e45dbeff1 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -1326,13 +1326,12 @@ void i915_error_state_get(struct drm_device *dev, struct i915_error_state_file_priv *error_priv) { struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long flags; - spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); + spin_lock_irq(&dev_priv->gpu_error.lock); error_priv->error = dev_priv->gpu_error.first_error; if (error_priv->error) kref_get(&error_priv->error->ref); - spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); + spin_unlock_irq(&dev_priv->gpu_error.lock); } @@ -1346,12 +1345,11 @@ void i915_destroy_error_state(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_error_state *error; - unsigned long flags; - spin_lock_irqsave(&dev_priv->gpu_error.lock, flags); + spin_lock_irq(&dev_priv->gpu_error.lock); error = dev_priv->gpu_error.first_error; dev_priv->gpu_error.first_error = NULL; - spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags); + spin_unlock_irq(&dev_priv->gpu_error.lock); if (error) kref_put(&error->ref, i915_error_state_free); -- 2.20.1