Francesco Dolcini d849cf64c5 platform/surface: aggregator: fix recv_buf() return value ... commit c8820c92caf0770bec976b01fa9e82bb993c5865 upstream. Serdev recv_buf() callback is supposed to return the amount of bytes consumed, therefore an int in between 0 and count. Do not return negative number in case of issue, when ssam_controller_receive_buf() returns ESHUTDOWN just returns 0, e.g. no bytes consumed, this keep the exact same behavior as it was before. This fixes a potential WARN in serdev-ttyport.c:ttyport_receive_buf(). Fixes: c167b9c7e3 ("platform/surface: Add Surface Aggregator subsystem") Cc: stable@vger.kernel.org Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> Link: https://lore.kernel.org/r/20231128194935.11350-1-francesco@dolcini.it Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-12-13 18:36:44 +01:00
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aggregator	platform/surface: aggregator: fix recv_buf() return value	2023-12-13 18:36:44 +01:00
Kconfig	…
Makefile	…
surface3-wmi.c	…
surface3_button.c	…
surface3_power.c	…
surface_acpi_notify.c	…
surface_aggregator_cdev.c	…
surface_aggregator_registry.c	…
surface_dtx.c	…
surface_gpe.c	…
surface_hotplug.c	…
surface_platform_profile.c	platform/surface: platform_profile: Propagate error if profile registration fails	2023-10-25 11:59:03 +02:00
surfacepro3_button.c	…