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scd: Fix for USB INTERRUPT transfer. 

* scd/ccid-driver.c (intr_cb): When LIBUSB_TRANSFER_NO_DEVICE,
just handle this event as failure.

--

Cherry-picked from master commit:

	5ab3bc422a

It used to try another interrupt transfer request to make sure
if it fails again.

GnuPG-bug-id: 4308
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2019-01-07 14:08:51 +09:00
parent 80a08b655f
commit 9dc76d599c
1 changed files with 1 additions and 2 deletions
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3
scd/ccid-driver.c
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@ -1470,8 +1470,7 @@ intr_cb (struct libusb_transfer *transfer)
DEBUGOUT_1 ("CCID: interrupt callback %d\n", transfer->status);
if (transfer->status == LIBUSB_TRANSFER_TIMED_OUT
|| transfer->status == LIBUSB_TRANSFER_NO_DEVICE)
if (transfer->status == LIBUSB_TRANSFER_TIMED_OUT)
{
int err;