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greybus: gpio: Print expected/actual payload size on mismatch

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Print (expected-payload-size actual-payload-size), when the size doesn't
match for requests received by the module. This gives more details
required for debugging the issue.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Viresh Kumar 2015-08-06 12:44:51 +05:30 committed by Greg Kroah-Hartman
parent 7fea641c94
commit 782c3b7328
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/greybus/gpio.c
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@ -366,7 +366,8 @@ static int gb_gpio_request_recv(u8 type, struct gb_operation *op)
request = op->request;
if (request->payload_size < sizeof(*event)) {
dev_err(ggc->chip.dev, "short event received\n");
dev_err(ggc->chip.dev, "short event received (%zu < %zu)\n",
request->payload_size, sizeof(*event));
return -EINVAL;
}