drm/i915: Remove struct_mutex guard for debugfs/opregion (6c3828ab) · Commits · 戴 / test

Having a struct_mutex around the read of a BIOS blob serves no purpose. Signed-off-by:

drivers/gpu/drm/i915/i915_debugfs.c

+1 −11

Original line number	Diff line number	Diff line
		@@ -1500,21 +1500,11 @@ static int i915_ring_freq_table(struct seq_file m, void unused)

		static int i915_opregion(struct seq_file m, void unused)
		{
		struct drm_i915_private *dev_priv = node_to_i915(m->private);
		struct drm_device *dev = &dev_priv->drm;
		struct intel_opregion *opregion = &dev_priv->opregion;
		int ret;

		ret = mutex_lock_interruptible(&dev->struct_mutex);
		if (ret)
		goto out;
		struct intel_opregion *opregion = &node_to_i915(m->private)->opregion;

		if (opregion->header)
		seq_write(m, opregion->header, OPREGION_SIZE);

		mutex_unlock(&dev->struct_mutex);

		out:
		return 0;
		}