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: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index c2e211a..7e884ea 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1675,9 +1675,6 @@
#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 @@
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);