[PATCH] drm/amd/amdgpu: Test for PCI root bus before assuming bus->self

From: Young_X If we assign an amd device to a virtual mechine, we can no longer assume a fixed hardware topology, like the GPU having a parent device. This patch simply adds pci_is_root_bus() tests to avoid passing a NULL pointer to PCI access functions. See commit e79d5c0870

[PATCH] drm: radeon: fix overflow on 32bit systems

From: Young Xiao the type mem->start is unsigned long, so this can overflow on 32bit system, since the type addr is uint64_t. Signed-off-by: Young Xiao --- drivers/gpu/drm/radeon/radeon_vm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_vm.c

[PATCH] drm/amd/display: fix uninitialized symbol 'id' in bios_parser_get_src_obj

From: Young Xiao See commit a8f976473196 ("drm/amd/display: Bunch of smatch error and warning fixes in DC") for detail. Signed-off-by: Young Xiao --- drivers/gpu/drm/amd/display/dc/bios/bios_parser.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/di

[PATCH] drm/radeon: avoid a possible array overflow

From: Young Xiao When looking up the connector type make sure the index is valid. Avoids a later crash if we read past the end of the array. See commit e1718d97aa88 ("drm/amdgpu: avoid a possible array overflow") for detail. Signed-off-by: Young Xiao --- drivers/gpu/drm/radeon/radeon_atombio