staging: comedi: rtd520: move constants to right side of comparisons

[cascardo/linux.git] / drivers / staging / comedi / drivers / rtd520.c

diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index f93a6e3..b4d8f59 100644 (file)
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -608,7 +608,7 @@ static int ai_read_n(struct comedi_device *dev, struct comedi_subdevice *s,
                unsigned int range = CR_RANGE(cmd->chanlist[async->cur_chan]);
                unsigned short d;
 
-               if (0 == devpriv->ai_count) {   /* done */
+               if (devpriv->ai_count == 0) {   /* done */
                        d = readw(devpriv->las1 + LAS1_ADC_FIFO);
                        continue;
                }
@@ -655,7 +655,7 @@ static irqreturn_t rtd_interrupt(int irq, void *d)
 
        status = readw(dev->mmio + LAS0_IT);
        /* if interrupt was not caused by our board, or handled above */
-       if (0 == status)
+       if (status == 0)
                return IRQ_HANDLED;
 
        if (status & IRQM_ADC_ABOUT_CNT) {      /* sample count -> read FIFO */
@@ -670,7 +670,7 @@ static irqreturn_t rtd_interrupt(int irq, void *d)
                        if (ai_read_n(dev, s, devpriv->fifosz / 2) < 0)
                                goto xfer_abort;
 
-                       if (0 == devpriv->ai_count)
+                       if (devpriv->ai_count == 0)
                                goto xfer_done;
                } else if (devpriv->xfer_count > 0) {
                        if (fifo_status & FS_ADC_NOT_EMPTY) {
@@ -678,7 +678,7 @@ static irqreturn_t rtd_interrupt(int irq, void *d)
                                if (ai_read_n(dev, s, devpriv->xfer_count) < 0)
                                        goto xfer_abort;
 
-                               if (0 == devpriv->ai_count)
+                               if (devpriv->ai_count == 0)
                                        goto xfer_done;
                        }
                }
@@ -760,7 +760,7 @@ static int rtd_ai_cmdtest(struct comedi_device *dev,
 
        if (cmd->scan_begin_src == TRIG_TIMER) {
                /* Note: these are time periods, not actual rates */
-               if (1 == cmd->chanlist_len) {   /* no scanning */
+               if (cmd->chanlist_len == 1) {   /* no scanning */
                        if (comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
                                                         RTD_MAX_SPEED_1)) {
                                rtd_ns_to_timer(&cmd->scan_begin_arg,
@@ -795,7 +795,7 @@ static int rtd_ai_cmdtest(struct comedi_device *dev,
        }
 
        if (cmd->convert_src == TRIG_TIMER) {
-               if (1 == cmd->chanlist_len) {   /* no scanning */
+               if (cmd->chanlist_len == 1) {   /* no scanning */
                        if (comedi_check_trigger_arg_min(&cmd->convert_arg,
                                                         RTD_MAX_SPEED_1)) {
                                rtd_ns_to_timer(&cmd->convert_arg,
@@ -907,7 +907,7 @@ static int rtd_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
        }
        writel((devpriv->fifosz / 2 - 1) & 0xffff, dev->mmio + LAS0_ACNT);
 
-       if (TRIG_TIMER == cmd->scan_begin_src) {
+       if (cmd->scan_begin_src == TRIG_TIMER) {
                /* scan_begin_arg is in nanoseconds */
                /* find out how many samples to wait before transferring */
                if (cmd->flags & CMDF_WAKE_EOS) {