From: Maarten Lankhorst Date: Wed, 9 Sep 2015 14:40:57 +0000 (+0200) Subject: drm/core: Preserve the fb id on close. X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=73f7570bc6c853ca1fad24f9d31815b20e405354;p=deliverable%2Flinux.git drm/core: Preserve the fb id on close. Keep the fb_id, which means that any application exiting without unsetting the framebuffer from all planes will preserve its contents. This is similar to preserving the initial framebuffer, except all planes are preserved. Signed-off-by: Maarten Lankhorst Reviewed-by: David Herrmann [danvet: Remove unused variable, reported by Stephen Rothwell.] Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 626b0a57efbf..e600a5fb2b60 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -3320,9 +3320,6 @@ int drm_mode_rmfb(struct drm_device *dev, if (!found) goto fail_lookup; - /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ - __drm_framebuffer_unregister(dev, fb); - list_del_init(&fb->filp_head); mutex_unlock(&dev->mode_config.fb_lock); mutex_unlock(&file_priv->fbs_lock); @@ -3494,7 +3491,6 @@ out_err1: */ void drm_fb_release(struct drm_file *priv) { - struct drm_device *dev = priv->minor->dev; struct drm_framebuffer *fb, *tfb; /* @@ -3508,15 +3504,9 @@ void drm_fb_release(struct drm_file *priv) * at it any more. */ list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { - - mutex_lock(&dev->mode_config.fb_lock); - /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ - __drm_framebuffer_unregister(dev, fb); - mutex_unlock(&dev->mode_config.fb_lock); - list_del_init(&fb->filp_head); - /* This will also drop the fpriv->fbs reference. */ + /* This drops the fpriv->fbs reference. */ drm_framebuffer_unreference(fb); } }