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staging: comedi: ni_tiocmd: remove unsed param from ni_tio_acknowledge_and_confirm()

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The 'stale_data' pointer is always NULL. Just remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2016-03-23 15:36:58 -07:00 committed by Greg Kroah-Hartman
parent b878a82ee1
commit 53d6337129
1 changed files with 3 additions and 10 deletions
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13
drivers/staging/comedi/drivers/ni_tiocmd.c
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@ -338,8 +338,7 @@ static int should_ack_gate(struct ni_gpct *counter)
static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter,
int *gate_error,
int *tc_error,
int *perm_stale_data,
int *stale_data)
int *perm_stale_data)
{
unsigned int cidx = counter->counter_index;
const unsigned short gxx_status = ni_tio_read(counter,
@ -354,8 +353,6 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter,
*tc_error = 0;
if (perm_stale_data)
*perm_stale_data = 0;
if (stale_data)
*stale_data = 0;
if (gxx_status & GI_GATE_ERROR(cidx)) {
ack |= GI_GATE_ERROR_CONFIRM(cidx);
@ -385,10 +382,6 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter,
ni_tio_write(counter, ack, NITIO_INT_ACK_REG(cidx));
if (ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)) &
GI_LOADING_ON_GATE) {
if (gxx_status & GI_STALE_DATA(cidx)) {
if (stale_data)
*stale_data = 1;
}
if (ni_tio_read(counter, NITIO_STATUS2_REG(cidx)) &
GI_PERMANENT_STALE(cidx)) {
dev_info(counter->counter_dev->dev->class_dev,
@ -402,7 +395,7 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter,
void ni_tio_acknowledge(struct ni_gpct *counter)
{
ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL, NULL);
ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL);
}
EXPORT_SYMBOL_GPL(ni_tio_acknowledge);
@ -417,7 +410,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter,
int perm_stale_data;
ni_tio_acknowledge_and_confirm(counter, &gate_error, &tc_error,
&perm_stale_data, NULL);
&perm_stale_data);
if (gate_error) {
dev_notice(counter->counter_dev->dev->class_dev,
"%s: Gi_Gate_Error detected.\n", __func__);