staging: comedi: drivers should not clear the async->events

The comedi core resets the async->events in comedi_buf_reset() which is
called when the subdevice is restored to an idle state and at the start
of an async command. The async->events are also cleared after handling
the events in comedi_event().

Drivers should not clear the events manually.

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/addi-data/hwdrv_apci3120.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
index bd05857..978cc57 100644 (file)
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
@@ -1574,8 +1574,6 @@ static int i_APCI3120_InterruptHandleEos(struct comedi_device *dev)
 
        n_chan = devpriv->ui_AiNbrofChannels;
 
-       s->async->events = 0;
-
        for (i = 0; i < n_chan; i++)
                err &= comedi_buf_put(s->async, inw(dev->iobase + 0));
 

diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
index 8c85a09..89ffc1f 100644 (file)
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
@@ -2619,7 +2619,6 @@ static int i_APCI3200_InterruptHandleEos(struct comedi_device *dev)
                /* BEGIN JK 18.10.2004: APCI-3200 Driver update 0.7.57 -> 0.7.68 */
                /* This value is not used */
                /* ui_ChannelNumber = inl(devpriv->iobase+s_BoardInfos [dev->minor].i_Offset + 24); */
-               s->async->events = 0;
                /* END JK 18.10.2004: APCI-3200 Driver update 0.7.57 -> 0.7.68 */
 
       /*************************************/

diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 980ce49..3cfa175 100644 (file)
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -955,8 +955,6 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
        struct pci9118_private *devpriv = dev->private;
        unsigned short sampl;
 
-       s->async->events = 0;
-
        if (int_adstat & devpriv->ai_maskerr)
                if (pci9118_decode_error_status(dev, s, int_adstat))
                        return;

diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
index 3f59666..cd95625 100644 (file)
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ b/drivers/staging/comedi/drivers/comedi_test.c
@@ -185,7 +185,6 @@ static void waveform_ai_interrupt(unsigned long arg)
            (devpriv->usec_remainder + elapsed_time) / devpriv->scan_period;
        devpriv->usec_remainder =
            (devpriv->usec_remainder + elapsed_time) % devpriv->scan_period;
-       async->events = 0;
 
        if (cmd->stop_src == TRIG_COUNT) {
                unsigned int remaining = cmd->stop_arg - devpriv->ai_count;

diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index 70aecbc..7792258 100644 (file)
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -416,7 +416,6 @@ static void das16m1_handler(struct comedi_device *dev, unsigned int status)
 
        s = dev->read_subdev;
        async = s->async;
-       async->events = 0;
        cmd = &async->cmd;
 
        /*  figure out how many samples are in fifo */

diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 9f353cf..8e975d6 100644 (file)
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -646,7 +646,6 @@ static void das1800_ai_handler(struct comedi_device *dev)
        struct comedi_cmd *cmd = &async->cmd;
        unsigned int status = inb(dev->iobase + DAS1800_STATUS);
 
-       async->events = 0;
        /*  select adc for base address + 0 */
        outb(ADC, dev->iobase + DAS1800_SELECT);
        /*  dma buffer full */

diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index a4fb3d6..3e40837 100644 (file)
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -448,7 +448,6 @@ static int das800_ai_do_cmd(struct comedi_device *dev,
        das800_ind_write(dev, conv_bits, CONV_CONTROL);
        spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
-       async->events = 0;
        das800_enable(dev);
        return 0;
 }

diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index de60a28..5af0f78 100644 (file)
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -746,8 +746,6 @@ static irqreturn_t handle_interrupt(int irq, void *d)
        hpdi_intr_status = readl(devpriv->hpdi_iobase + INTERRUPT_STATUS_REG);
        hpdi_board_status = readl(devpriv->hpdi_iobase + BOARD_STATUS_REG);
 
-       async->events = 0;
-
        if (hpdi_intr_status) {
                writel(hpdi_intr_status,
                       devpriv->hpdi_iobase + INTERRUPT_STATUS_REG);

diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index e739bcd..f02b31b 100644 (file)
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -1112,9 +1112,6 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
        if (!dev->attached)
                return IRQ_NONE;
 
-       /* Reset all events */
-       s->async->events = 0;
-
        if (inl(dev->iobase + ME4000_IRQ_STATUS_REG) &
            ME4000_IRQ_STATUS_BIT_AI_HF) {
                /* Read status register to find out what happened */