staging/comedi/adl_pci8164: Don't assign string
authorPeter Huewe <peterhuewe@gmx.de>
Mon, 28 Jan 2013 23:36:39 +0000 (00:36 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 30 Jan 2013 04:11:41 +0000 (23:11 -0500)
Assigning a string is really bad,
and since we only have 1 char strings here we
can simply use a char to store the value and change the format specifier.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/adl_pci8164.c

index bfa71e0..ece84dd 100644 (file)
@@ -62,35 +62,35 @@ static void adl_pci8164_insn_read(struct comedi_device *dev,
                                  char *action, unsigned short offset)
 {
        int axis, axis_reg;
-       char *axisname;
+       char axisname;
 
        axis = CR_CHAN(insn->chanspec);
 
        switch (axis) {
        case 0:
                axis_reg = PCI8164_AXIS_X;
-               axisname = "X";
+               axisname = 'X';
                break;
        case 1:
                axis_reg = PCI8164_AXIS_Y;
-               axisname = "Y";
+               axisname = 'Y';
                break;
        case 2:
                axis_reg = PCI8164_AXIS_Z;
-               axisname = "Z";
+               axisname = 'Z';
                break;
        case 3:
                axis_reg = PCI8164_AXIS_U;
-               axisname = "U";
+               axisname = 'U';
                break;
        default:
                axis_reg = PCI8164_AXIS_X;
-               axisname = "X";
+               axisname = 'X';
        }
 
        data[0] = inw(dev->iobase + axis_reg + offset);
        dev_dbg(dev->class_dev,
-               "pci8164 %s read -> %04X:%04X on axis %s\n",
+               "pci8164 %s read -> %04X:%04X on axis %c\n",
                action, data[0], data[1], axisname);
 }
 
@@ -142,36 +142,36 @@ static void adl_pci8164_insn_out(struct comedi_device *dev,
 {
        unsigned int axis, axis_reg;
 
-       char *axisname;
+       char axisname;
 
        axis = CR_CHAN(insn->chanspec);
 
        switch (axis) {
        case 0:
                axis_reg = PCI8164_AXIS_X;
-               axisname = "X";
+               axisname = 'X';
                break;
        case 1:
                axis_reg = PCI8164_AXIS_Y;
-               axisname = "Y";
+               axisname = 'Y';
                break;
        case 2:
                axis_reg = PCI8164_AXIS_Z;
-               axisname = "Z";
+               axisname = 'Z';
                break;
        case 3:
                axis_reg = PCI8164_AXIS_U;
-               axisname = "U";
+               axisname = 'U';
                break;
        default:
                axis_reg = PCI8164_AXIS_X;
-               axisname = "X";
+               axisname = 'X';
        }
 
        outw(data[0], dev->iobase + axis_reg + offset);
 
        dev_dbg(dev->class_dev,
-               "pci8164 %s write -> %04X:%04X on axis %s\n",
+               "pci8164 %s write -> %04X:%04X on axis %c\n",
                action, data[0], data[1], axisname);
 
 }