uhid(4): Don't read-ahead from the USB IN endpoint.
This avoids an issue where IN endpoint data received from the device right before the file handle is closed, gets lost. PR: 263995 MFC after: 1 week Sponsored by: NVIDIA Networking
This commit is contained in:
parent
f5766992c0
commit
b6f615255d
@ -218,6 +218,12 @@ uhid_intr_read_callback(struct usb_xfer *xfer, usb_error_t error)
|
||||
actlen = sc->sc_isize;
|
||||
usb_fifo_put_data(sc->sc_fifo.fp[USB_FIFO_RX], pc,
|
||||
0, actlen, 1);
|
||||
|
||||
/*
|
||||
* Do not do read-ahead, because this may lead
|
||||
* to data loss!
|
||||
*/
|
||||
return;
|
||||
} else {
|
||||
/* ignore it */
|
||||
DPRINTF("ignored transfer, %d bytes\n", actlen);
|
||||
|
Loading…
Reference in New Issue
Block a user