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Commit 75e2acf2 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm/i915: Drop locking around fbdev-fb in debugfs 



All the date we print is invariant for the lifetime of the driver.
And none of it would be protected by the mode_config.mutex anyway.
So drop it.

Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent f3d28878

drivers/gpu/drm/i915/i915_debugfs.c

+0 −4
Original line number Diff line number Diff line
@@ -1675,9 +1675,6 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data) 


#ifdef CONFIG_DRM_I915_FBDEV

	struct drm_i915_private *dev_priv = dev->dev_private;

	int ret = mutex_lock_interruptible(&dev->mode_config.mutex);

	if (ret)

		return ret;



	ifbdev = dev_priv->fbdev;

	fb = to_intel_framebuffer(ifbdev->helper.fb);
@@ -1690,7 +1687,6 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data) 
		   atomic_read(&fb->base.refcount.refcount));

	describe_obj(m, fb->obj);

	seq_putc(m, '\n');

	mutex_unlock(&dev->mode_config.mutex);

#endif



	mutex_lock(&dev->mode_config.fb_lock);