smsc-ircc2: tidy up module parameter checking

[powerpc.git] / drivers / net / irda / smsc-ircc2.c

diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
index 198bf3b..1d24973 100644 (file)
--- a/drivers/net/irda/smsc-ircc2.c
+++ b/drivers/net/irda/smsc-ircc2.c
@@ -79,11 +79,13 @@ MODULE_AUTHOR("Daniele Peri <peri@csai.unipa.it>");
 MODULE_DESCRIPTION("SMC IrCC SIR/FIR controller driver");
 MODULE_LICENSE("GPL");
 
-static int ircc_dma = 255;
+#define DMA_INVAL 255
+static int ircc_dma = DMA_INVAL;
 module_param(ircc_dma, int, 0);
 MODULE_PARM_DESC(ircc_dma, "DMA channel");
 
-static int ircc_irq = 255;
+#define IRQ_INVAL 255
+static int ircc_irq = IRQ_INVAL;
 module_param(ircc_irq, int, 0);
 MODULE_PARM_DESC(ircc_irq, "IRQ line");
 
@@ -646,7 +648,7 @@ static void smsc_ircc_setup_io(struct smsc_ircc_cb *self,
        self->io.fifo_size = SMSC_IRCC2_FIFO_SIZE;
        self->io.speed = SMSC_IRCC2_C_IRDA_FALLBACK_SPEED;
 
-       if (irq < 255) {
+       if (irq != IRQ_INVAL) {
                if (irq != chip_irq)
                        IRDA_MESSAGE("%s, Overriding IRQ - chip says %d, using %d\n",
                                     driver_name, chip_irq, irq);
@@ -654,7 +656,7 @@ static void smsc_ircc_setup_io(struct smsc_ircc_cb *self,
        } else
                self->io.irq = chip_irq;
 
-       if (dma < 255) {
+       if (dma != DMA_INVAL) {
                if (dma != chip_dma)
                        IRDA_MESSAGE("%s, Overriding DMA - chip says %d, using %d\n",
                                     driver_name, chip_dma, dma);
@@ -2836,9 +2838,9 @@ static int __init smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
                                        tmpconf.fir_io = ircc_fir;
                                if (ircc_sir != 0)
                                        tmpconf.sir_io = ircc_sir;
-                               if (ircc_dma != 0xff)
+                               if (ircc_dma != DMA_INVAL)
                                        tmpconf.fir_dma = ircc_dma;
-                               if (ircc_irq != 0xff)
+                               if (ircc_irq != IRQ_INVAL)
                                        tmpconf.fir_irq = ircc_irq;
 
                                IRDA_MESSAGE("Detected unconfigured %s SMSC IrDA chip, pre-configuring device.\n", conf->name);