linux-stable/drivers/platform/surface
Maximilian Luz 9795d8232a platform/surface: dtx: Fix poll function
The poll function should not return -ERESTARTSYS.

Furthermore, locking in this function is completely unnecessary. The
ddev->lock protects access to the main device and controller (ddev->dev
and ddev->ctrl), ensuring that both are and remain valid while being
accessed by clients. Both are, however, never accessed in the poll
function. The shutdown test (via atomic bit flags) be safely done
without locking, so drop locking here entirely.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 1d60999283 ("platform/surface: Add DTX driver)
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20210513134437.2431022-1-luzmaximilian@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-05-19 15:24:52 +02:00
..
aggregator platform/surface: aggregator: Do not mark interrupt as shared 2021-05-19 15:24:52 +02:00
Kconfig platform/surface: dtx: Add support for native SSAM devices 2021-03-17 18:39:38 +01:00
Makefile platform/surface: Add DTX driver 2021-03-17 18:39:38 +01:00
surface3-wmi.c platform/surface: surface3-wmi: Fix variable 'status' set but not used compiler warning 2021-02-04 13:23:55 +01:00
surface3_button.c platform/surface: Move Surface 3 Button driver to platform/surface 2020-10-27 12:51:24 +01:00
surface3_power.c platform/surface: Move Surface 3 Power OpRegion driver to platform/surface 2020-10-27 12:51:24 +01:00
surface_acpi_notify.c platform/surface: fix potential integer overflow on shift of a int 2021-01-13 10:25:10 +01:00
surface_aggregator_cdev.c platform/surface: aggregator_cdev: Add comments regarding unchecked allocation size 2021-01-13 10:30:21 +01:00
surface_aggregator_registry.c platform/surface: aggregator_registry: Give devices time to set up when connecting 2021-04-07 19:47:23 +02:00
surface_dtx.c platform/surface: dtx: Fix poll function 2021-05-19 15:24:52 +02:00
surface_gpe.c platform/surface: surface_gpe: Fix non-PM_SLEEP build warnings 2021-01-04 15:54:27 +01:00
surface_hotplug.c platform/surface: Add Surface Hot-Plug driver 2021-02-08 16:59:21 +01:00
surface_platform_profile.c platform/surface: aggregator: Make SSAM_DEFINE_SYNC_REQUEST_x define static functions 2021-03-08 11:33:28 +01:00
surfacepro3_button.c platform: x86: ACPI: Get rid of ACPICA message printing 2021-03-08 11:33:39 +01:00