From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:33436 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753144AbcDMUrh (ORCPT ); Wed, 13 Apr 2016 16:47:37 -0400 Subject: Patch "drm/udl: Use unlocked gem unreferencing" has been added to the 4.4-stable tree To: daniel.vetter@ffwll.ch, airlied@redhat.com, daniel.vetter@intel.com, gregkh@linuxfoundation.org Cc: , From: Date: Wed, 13 Apr 2016 13:47:35 -0700 Message-ID: <1460580455194126@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled drm/udl: Use unlocked gem unreferencing to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-udl-use-unlocked-gem-unreferencing.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 72b9ff0612ad8fc969b910cd00ac16b57a1a9ba4 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 30 Mar 2016 11:40:43 +0200 Subject: drm/udl: Use unlocked gem unreferencing From: Daniel Vetter commit 72b9ff0612ad8fc969b910cd00ac16b57a1a9ba4 upstream. For drm_gem_object_unreference callers are required to hold dev->struct_mutex, which these paths don't. Enforcing this requirement has become a bit more strict with commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663 Author: Daniel Vetter Date: Thu Oct 15 09:36:25 2015 +0200 drm/gem: Check locking in drm_gem_object_unreference Signed-off-by: Daniel Vetter Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/udl/udl_fb.c | 2 +- drivers/gpu/drm/udl/udl_gem.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -539,7 +539,7 @@ static int udlfb_create(struct drm_fb_he out_destroy_fbi: drm_fb_helper_release_fbi(helper); out_gfree: - drm_gem_object_unreference(&ufbdev->ufb.obj->base); + drm_gem_object_unreference_unlocked(&ufbdev->ufb.obj->base); out: return ret; } --- a/drivers/gpu/drm/udl/udl_gem.c +++ b/drivers/gpu/drm/udl/udl_gem.c @@ -52,7 +52,7 @@ udl_gem_create(struct drm_file *file, return ret; } - drm_gem_object_unreference(&obj->base); + drm_gem_object_unreference_unlocked(&obj->base); *handle_p = handle; return 0; } Patches currently in stable-queue which might be from daniel.vetter@ffwll.ch are queue-4.4/drm-dp-move-hw_mutex-up-the-call-stack.patch queue-4.4/drm-udl-use-unlocked-gem-unreferencing.patch