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

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>

diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c
index 1400b1f..2d801bf 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_tiocmd.c
+++ b/drivers/staging/comedi/drivers/ni_tiocmd.c
@@ -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__);