diff options
| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-02-24 07:08:44 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-02-24 07:08:44 +0000 |
| commit | c41614ea66196b2e05b57a24064be449aa8a8830 (patch) | |
| tree | 4b50ed25878865da3b03300eaeea9b328b1f9022 /os | |
| parent | 4256a9113fd16e1b8d7cef963f83931b7d9182ad (diff) | |
| download | ChibiOS-c41614ea66196b2e05b57a24064be449aa8a8830.tar.gz ChibiOS-c41614ea66196b2e05b57a24064be449aa8a8830.tar.bz2 ChibiOS-c41614ea66196b2e05b57a24064be449aa8a8830.zip | |
Fixed bug 3605793.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5304 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os')
| -rw-r--r-- | os/hal/src/serial_usb.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/os/hal/src/serial_usb.c b/os/hal/src/serial_usb.c index 23a323356..000d13951 100644 --- a/os/hal/src/serial_usb.c +++ b/os/hal/src/serial_usb.c @@ -323,8 +323,9 @@ void sduDataTransmitted(USBDriver *usbp, usbep_t ep) { chSysLockFromIsr();
usbStartTransmitI(usbp, ep);
}
- else if (!(usbp->epc[ep]->in_state->txsize &
- (usbp->epc[ep]->in_maxsize - 1))) {
+ else if ((usbp->epc[ep]->in_state->txsize > 0) &&
+ !(usbp->epc[ep]->in_state->txsize &
+ (usbp->epc[ep]->in_maxsize - 1))) {
/* Transmit zero sized packet in case the last one has maximum allowed
size. Otherwise the recipient may expect more data coming soon and
not return buffered data to app. See section 5.8.3 Bulk Transfer
|