From 75e2acf24ab5e4bbf6a19b0f5460456ea16a2e5d Mon Sep 17 00:00:00 2001 From: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu, 29 May 2014 23:27:00 +0200 Subject: [PATCH] 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> --- 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 c2e211a7a508..7e884eaa02f1 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); -- GitLab