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vfs0050: Accept zero bytes read instead of timeout for emulation

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This allows us to replace non-emulateable timeout conditions into zero
byte replies in the recording.
This commit is contained in:
Benjamin Berg
2020-05-13 17:26:34 +02:00
committed by Benjamin Berg
parent b137807420
commit 4b83f8bfd9
1 changed files with 3 additions and 2 deletions
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5
libfprint/drivers/vfs0050.c
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@@ -117,9 +117,10 @@ async_abort_callback (FpiUsbTransfer *transfer, FpDevice *device,
int ep = transfer->endpoint;
/* In normal case endpoint is empty */
if (g_error_matches (error, G_USB_DEVICE_ERROR, G_USB_DEVICE_ERROR_TIMED_OUT))
if (g_error_matches (error, G_USB_DEVICE_ERROR, G_USB_DEVICE_ERROR_TIMED_OUT) ||
(g_strcmp0 (g_getenv ("FP_DEVICE_EMULATION"), "1") == 0 && transfer->actual_length == 0))
{
g_error_free (error);
g_clear_error (&error);
fpi_ssm_next_state (transfer->ssm);
return;
}