This may happen if the acquisition_start is called right after calling acquisition_stop and not all transfers have been freed or on repeated calls to acquisition_start. If it happens we'll enter an undefined state and all kind of strange behavior may occur, so error out in such a case.
Signed-off-by: Lars-Peter Clausen <[email protected]> --- libsigrok/hardware/fx2lafw/fx2lafw.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libsigrok/hardware/fx2lafw/fx2lafw.c b/libsigrok/hardware/fx2lafw/fx2lafw.c index 2886613..11e41ff 100644 --- a/libsigrok/hardware/fx2lafw/fx2lafw.c +++ b/libsigrok/hardware/fx2lafw/fx2lafw.c @@ -918,6 +918,10 @@ static int hw_dev_acquisition_start(int dev_index, void *cb_data) if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) return SR_ERR; ctx = sdi->priv; + + if (ctx->submitted_transfers != 0) + return SR_ERR; + ctx->session_dev_id = cb_data; ctx->num_samples = 0; ctx->empty_transfer_count = 0; -- 1.7.10 ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ sigrok-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sigrok-devel
