91db9311945f01901ddb9813ce11364de214a156 - SHIFTPHONES/kernel/common

commit	91db9311945f01901ddb9813ce11364de214a156	[log] [tgz]
author	Su Sung Chung <Su.Chung@amd.com>	Mon Jul 08 11:31:39 2019 -0400
committer	Alex Deucher <alexander.deucher@amd.com>	Thu Aug 15 10:53:55 2019 -0500
tree	1afec6692b3e5f2a29036ab0b889bf558adf91ac
parent	37495fbdf12d1bce30dbc228c901ef45eba35739 [diff]

drm/amd/display: refactor gpio to allocate hw_container in constructor

[why]
if dynamic allocation fails during gpio_open, it will cause crash due to
page fault.

[how]
handle allocation when gpio object gets created and prevent from calling
gpio_open if allocation failed

Signed-off-by: Su Sung Chung <Su.Chung@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/gpio/dce110/hw_factory_dce110.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/dce80/hw_factory_dce80.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/dcn10/hw_factory_dcn10.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_factory_dcn20.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/diagnostics/hw_factory_diag.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/gpio_service.h[diff]
drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.h[diff]
drivers/gpu/drm/amd/display/dc/gpio/hw_factory.h[diff]
drivers/gpu/drm/amd/display/dc/gpio/hw_generic.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/hw_generic.h[diff]
drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.c[diff]
drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.h[diff]
drivers/gpu/drm/amd/display/dc/inc/hw/gpio.h[diff]
drivers/gpu/drm/amd/display/include/gpio_interface.h[diff]

18 files changed

tree: 1afec6692b3e5f2a29036ab0b889bf558adf91ac