c8820c92ca
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: c167b9c7e3d6 ("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>
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|---|---|---|
| .. | ||
| aggregator | ||
| Kconfig | ||
| Makefile | ||
| surface3_power.c | ||
| surface3-wmi.c | ||
| surface_acpi_notify.c | ||
| surface_aggregator_cdev.c | ||
| surface_aggregator_hub.c | ||
| surface_aggregator_registry.c | ||
| surface_aggregator_tabletsw.c | ||
| surface_dtx.c | ||
| surface_gpe.c | ||
| surface_hotplug.c | ||
| surface_platform_profile.c | ||
| surfacepro3_button.c | ||