From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan Wu Subject: [PATCH 2/2] Blackfin Video Driver: fix bug when opening/reading/mmaping BF54x and BF52x framebuffer simultaneously Date: Wed, 26 Mar 2008 18:19:35 -0700 Message-ID: <1206580775-23929-3-git-send-email-cooloney@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1JeSjJ-0003Lz-Gb for linux-fbdev-devel@lists.sourceforge.net; Wed, 26 Mar 2008 03:19:37 -0700 Received: from nwd2mail11.analog.com ([137.71.25.57]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1JeSjI-0001dm-3e for linux-fbdev-devel@lists.sourceforge.net; Wed, 26 Mar 2008 03:19:37 -0700 In-Reply-To: <> References: <> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: linux-fbdev-devel@lists.sourceforge.net, akpm@linux-foundation.org, linux-kernel@vger.kernel.org Cc: Bryan Wu , Michael Hennerich From: Michael Hennerich http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3974 opening/reading/mmaping BF54x and BF52x framebuffer simultaneously triggers BUG: failure at mm/nommu.c:470/add_nommu_vma() Add VM_SHARED to the default vm_flags Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- drivers/video/bf54x-lq043fb.c | 2 +- drivers/video/bfin-t350mcqb-fb.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index 986a550..eefba3d 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -384,7 +384,7 @@ static int bfin_bf54x_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) * Other flags can be set, and are documented in * include/linux/mm.h */ - vma->vm_flags |= VM_MAYSHARE; + vma->vm_flags |= VM_MAYSHARE | VM_SHARED; return 0; } diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c index 68d5857..c92d457 100644 --- a/drivers/video/bfin-t350mcqb-fb.c +++ b/drivers/video/bfin-t350mcqb-fb.c @@ -302,7 +302,7 @@ static int bfin_t350mcqb_fb_mmap(struct fb_info *info, struct vm_area_struct *vm * Other flags can be set, and are documented in * include/linux/mm.h */ - vma->vm_flags |= VM_MAYSHARE; + vma->vm_flags |= VM_MAYSHARE | VM_SHARED; return 0; } -- 1.5.4.3 ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace