Hi Sasha, url: https://github.com/0day-ci/linux/commits/Sasha-Levin/DirectX-on-Linux/202... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 642b151f45dd54809ea00ecd3976a56c1ec9b53d config: i386-allyesconfig (attached as .config) If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; New smatch warnings: drivers/gpu/dxgkrnl/dxgadapter.c:923 dxgallocation_destroy() error: we previously assumed 'alloc->owner.device' could be null (see line 919) drivers/gpu/dxgkrnl/dxgadapter.c:1246 dxgsyncobject_create() error: we previously assumed 'syncobj' could be null (see line 1205) drivers/gpu/dxgkrnl/dxgadapter.c:1248 dxgsyncobject_create() warn: variable dereferenced before check 'syncobj' (see line 1246) drivers/gpu/dxgkrnl/dxgvmbus.c:205 dxgvmbuschannel_receive() warn: inconsistent indenting drivers/gpu/dxgkrnl/dxgvmbus.c:240 dxgvmb_send_sync_msg() warn: inconsistent indenting drivers/gpu/dxgkrnl/dxgvmbus.c:2310 dxgvmb_send_create_hwqueue() error: we previously assumed 'command' could be null (see line 2234) Old smatch warnings: drivers/gpu/dxgkrnl/dxgvmbus.c:246 dxgvmb_send_sync_msg() warn: inconsistent indenting # https://github.com/0day-ci/linux/commit/09405fa255395b8e7fb7c8a886b18028b... git remote add linux-review https://github.com/0day-ci/linux git remote update linux-review git checkout 09405fa255395b8e7fb7c8a886b18028b907487c vim +923 drivers/gpu/dxgkrnl/dxgadapter.c 9cc562c3695b5b Sasha Levin 2020-05-19 911 void dxgallocation_destroy(struct dxgallocation *alloc) 9cc562c3695b5b Sasha Levin 2020-05-19 912 { 9cc562c3695b5b Sasha Levin 2020-05-19 913 struct dxgprocess *process = alloc->process; 9cc562c3695b5b Sasha Levin 2020-05-19 914 struct d3dkmt_destroyallocation2 args = { }; 9cc562c3695b5b Sasha Levin 2020-05-19 915 9cc562c3695b5b Sasha Levin 2020-05-19 916 dxgallocation_stop(alloc); 9cc562c3695b5b Sasha Levin 2020-05-19 917 if (alloc->resource_owner) 9cc562c3695b5b Sasha Levin 2020-05-19 918 dxgresource_remove_alloc(alloc->owner.resource, alloc); 9cc562c3695b5b Sasha Levin 2020-05-19 @919 else if (alloc->owner.device) ^^^^^^^^^^^^^^^^^^^ Checked. 9cc562c3695b5b Sasha Levin 2020-05-19 920 dxgdevice_remove_alloc(alloc->owner.device, alloc); ^^^^^^^^^^^^^^^^^^^ Freed here? 9cc562c3695b5b Sasha Levin 2020-05-19 921 dxgallocation_free_handle(alloc); 9cc562c3695b5b Sasha Levin 2020-05-19 922 if (alloc->alloc_handle && !alloc->resource_owner) { 9cc562c3695b5b Sasha Levin 2020-05-19 @923 args.device = alloc->owner.device->handle; ^^^^^^^^^^^^^^^^^^^ Unchecked dereference. 9cc562c3695b5b Sasha Levin 2020-05-19 924 args.alloc_count = 1; 9cc562c3695b5b Sasha Levin 2020-05-19 925 args.flags.assume_not_in_use = 1; 9cc562c3695b5b Sasha Levin 2020-05-19 926 dxgvmb_send_destroy_allocation(process, 9cc562c3695b5b Sasha Levin 2020-05-19 927 alloc->owner.device, 9cc562c3695b5b Sasha Levin 2020-05-19 928 &alloc->owner.device->adapter-> 9cc562c3695b5b Sasha Levin 2020-05-19 929 channel, &args, 9cc562c3695b5b Sasha Levin 2020-05-19 930 &alloc->alloc_handle); 9cc562c3695b5b Sasha Levin 2020-05-19 931 } 9cc562c3695b5b Sasha Levin 2020-05-19 932 if (alloc->gpadl) { 9cc562c3695b5b Sasha Levin 2020-05-19 933 TRACE_DEBUG(1, "Teardown gpadl %d", alloc->gpadl); 9cc562c3695b5b Sasha Levin 2020-05-19 934 vmbus_teardown_gpadl(dxgglobal_get_vmbus(), alloc->gpadl); 9cc562c3695b5b Sasha Levin 2020-05-19 935 TRACE_DEBUG(1, "Teardown gpadl end"); 9cc562c3695b5b Sasha Levin 2020-05-19 936 alloc->gpadl = 0; 9cc562c3695b5b Sasha Levin 2020-05-19 937 } 9cc562c3695b5b Sasha Levin 2020-05-19 938 if (alloc->priv_drv_data) 9cc562c3695b5b Sasha Levin 2020-05-19 939 dxgmem_free(alloc->process, DXGMEM_ALLOCPRIVATE, 9cc562c3695b5b Sasha Levin 2020-05-19 940 alloc->priv_drv_data); 9cc562c3695b5b Sasha Levin 2020-05-19 941 if (alloc->cpu_address_mapped) 9cc562c3695b5b Sasha Levin 2020-05-19 942 pr_err("Alloc IO space is mapped: %p", alloc); 9cc562c3695b5b Sasha Levin 2020-05-19 943 dxgmem_free(alloc->process, DXGMEM_ALLOCATION, alloc); 9cc562c3695b5b Sasha Levin 2020-05-19 944 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org _______________________________________________ kbuild mailing list -- kbuild(a)lists.01.org To unsubscribe send an email to kbuild-leave(a)lists.01.org