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: Daniel Vetter <[email protected]>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
b/drivers/gpu/drm/i915/i915_debugfs.c
index 538b83559593..5858cbb5232f 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -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);
-- 
1.9.2

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