Hello,

Please check whether holding the lock taken on line 604 past a failure return of the function is what was intended.

thanks, julia

---------- Forwarded message ---------- Date: Wed, 7 Jun 2017 15:06:38 +0800 From: kbuild test robot fengguang.wu@intel.com To: kbuild@01.org Cc: Julia Lawall julia.lawall@lip6.fr Subject: [radeon-alex:amd-mainline-hybrid-4.11 91/518] drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c:606:4-10: preceding lock on line 604

CC: kbuild-all@01.org CC: dri-devel@lists.freedesktop.org TO: Yong Zhao yong.zhao@amd.com CC: Hawking Zhang Hawking.Zhang@amd.com

tree: git://people.freedesktop.org/~agd5f/linux.git amd-mainline-hybrid-4.11 head: 7ccf5ab3da7a87288cc0fd11910b212e4ac154a6 commit: 5d27bff92aa139d984dd7549fb40255404cacd0c [91/518] Makefile change :::::: branch date: 2 days ago :::::: commit date: 2 days ago

...

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c:606:4-10: preceding lock on line 604

git remote add radeon-alex git://people.freedesktop.org/~agd5f/linux.git git remote update radeon-alex git checkout 5d27bff92aa139d984dd7549fb40255404cacd0c vim +606 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c

33f17825 Yong Zhao 2016-03-30 598 33f17825 Yong Zhao 2016-03-30 599 while (true) { 33f17825 Yong Zhao 2016-03-30 600 down_read(&mm->mmap_sem); 33f17825 Yong Zhao 2016-03-30 601 ret = amdgpu_ttm_tt_get_user_pages(bo->tbo.ttm, pages); 33f17825 Yong Zhao 2016-03-30 602 up_read(&mm->mmap_sem); 33f17825 Yong Zhao 2016-03-30 603 33f17825 Yong Zhao 2016-03-30 @604 mutex_lock(&mem->data2.lock); 33f17825 Yong Zhao 2016-03-30 605 if (ret != 0) 33f17825 Yong Zhao 2016-03-30 @606 return ret; 33f17825 Yong Zhao 2016-03-30 607 33f17825 Yong Zhao 2016-03-30 608 BUG_ON(bo != mem->data2.bo); 33f17825 Yong Zhao 2016-03-30 609

:::::: The code at line 606 was first introduced by commit :::::: 33f17825aa7ac32c05e8df35d9b9d177af28cf91 port in all files

:::::: TO: Yong Zhao yong.zhao@amd.com :::::: CC: Hawking Zhang Hawking.Zhang@amd.com

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