staging: comedi: adl_pci9118: handle error detection in main interrupt handler

The DMA and non-DMA both check the analog input status value to detect
hardware errors. For aesthetics, move the this detection into the main
interrupt handler. This allows removing the unused 'int_adstat' parameter
from the  DMA and non-DMA handlers. In addition, the 'int_daq' parameter
is also not used so remove it also.

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/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index d32c84a..c10d35a 100644 (file)
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -725,18 +725,12 @@ static void pci9118_ai_munge(struct comedi_device *dev,
 }
 
 static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
-                                          struct comedi_subdevice *s,
-                                          unsigned short int_adstat,
-                                          unsigned short int_daq)
+                                          struct comedi_subdevice *s)
 {
        struct pci9118_private *devpriv = dev->private;
        struct comedi_cmd *cmd = &s->async->cmd;
        unsigned short sampl;
 
-       if (int_adstat & devpriv->ai_maskerr)
-               if (pci9118_decode_error_status(dev, s, int_adstat))
-                       return;
-
        sampl = inl(dev->iobase + PCI9118_AI_FIFO_REG);
 
 #ifdef PCI9118_PARANOIDCHECK
@@ -770,19 +764,12 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
 }
 
 static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
-                                    struct comedi_subdevice *s,
-                                    unsigned short int_adstat,
-                                    unsigned short int_daq)
+                                    struct comedi_subdevice *s)
 {
        struct pci9118_private *devpriv = dev->private;
        struct comedi_cmd *cmd = &s->async->cmd;
        unsigned int next_dma_buf, samplesinbuf, sampls, m;
 
-       if (int_adstat & devpriv->ai_maskerr)
-                                       /* if (int_adstat & 0x106) */
-               if (pci9118_decode_error_status(dev, s, int_adstat))
-                       return;
-
        samplesinbuf = devpriv->dmabuf_use_size[devpriv->dma_actbuf] >> 1;
                                        /* number of received real samples */
 
@@ -862,6 +849,9 @@ static irqreturn_t pci9118_interrupt(int irq, void *d)
        }
 
        adstat = inl(dev->iobase + PCI9118_AI_STATUS_REG) & 0x1ff;
+       if (adstat & devpriv->ai_maskerr)
+               if (pci9118_decode_error_status(dev, s, adstat))
+                       return IRQ_HANDLED;
 
        if (!devpriv->ai_do)
                return IRQ_HANDLED;
@@ -892,9 +882,9 @@ static irqreturn_t pci9118_interrupt(int irq, void *d)
        }
 
        if (devpriv->usedma)
-               interrupt_pci9118_ai_dma(dev, s, adstat, intsrc);
+               interrupt_pci9118_ai_dma(dev, s);
        else
-               interrupt_pci9118_ai_onesample(dev, s, adstat, intsrc);
+               interrupt_pci9118_ai_onesample(dev, s);
 
        return IRQ_HANDLED;
 }