platform/chrome: cros_ec_proto: handle empty payload in getting proto info

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cros_ec_get_proto_info() expects to receive
sizeof(struct ec_response_get_protocol_info) from send_command().  The
payload is valid only if the return value is positive.

Return -EPROTO if send_command() returns 0 in cros_ec_get_proto_info().

Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20220609084957.3684698-10-tzungbi@kernel.org

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Tzung-Bi Shih 2022-06-09 08:49:45 +00:00

parent 3e97581ed9

commit 878c36f6ca

1 changed files with 5 additions and 0 deletions

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drivers/platform/chrome/cros_ec_proto.c

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