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fx2lafw: Properly initialize operational state before acquisition

This commit is contained in:
Bert Vermeulen 2013-04-29 19:02:26 +02:00
parent 0f75d6f5a9
commit 2a67abfe34
1 changed files with 9 additions and 8 deletions
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17
hardware/fx2lafw/fx2lafw.c
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@ -122,8 +122,6 @@ static const uint64_t samplerates[] = {
SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
static struct sr_dev_driver *di = &fx2lafw_driver_info;
static int hw_dev_close(struct sr_dev_inst *sdi);
static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
/**
* Check the USB configuration to determine if this is an fx2lafw device.
@ -334,12 +332,17 @@ static struct dev_context *fx2lafw_dev_new(void)
{
struct dev_context *devc;
if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
sr_err("Device context malloc failed.");
return NULL;
}
devc->trigger_stage = TRIGGER_FIRED;
devc->profile = NULL;
devc->fw_updated = 0;
devc->cur_samplerate = 0;
devc->limit_samples = 0;
devc->sample_wide = 0;
return devc;
}
@ -955,9 +958,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
devc = sdi->priv;
usb = sdi->conn;
if (devc->submitted_transfers != 0)
return SR_ERR;
/* Configures devc->trigger_* and devc->sample_wide */
if (configure_probes(sdi) != SR_OK) {
sr_err("Failed to configure probes.");
return SR_ERR;
@ -970,6 +971,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
timeout = get_timeout(devc);
num_transfers = get_number_of_transfers(devc);
size = get_buffer_size(devc);
devc->submitted_transfers = 0;
devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
if (!devc->transfers) {
@ -978,7 +980,6 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
}
devc->num_transfers = num_transfers;
for (i = 0; i < num_transfers; i++) {
if (!(buf = g_try_malloc(size))) {
sr_err("USB transfer buffer malloc failed.");