fix a compile warning in tipar.c

I got the following compile warning in 2.4.22-pre10:

<-- snip -->

...
gcc -D__KERNEL__ -I/home/bunk/linux/kernel-2.4/linux-2.4.22-pre10-full/include -
Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing
-fno-common -pipe -mpreferred-stack-boundary=2 -march=k6 -nostdinc -iwithprefix
include -DKBUILD_BASENAME=tipar -c -o tipar.o tipar.c
tipar.c:76:1: warning: "minor" redefined
In file included from /home/bunk/linux/kernel-2.4/linux-2.4.22-pre10-full/include/linux/fs.h:16,
from
/home/bunk/linux/kernel-2.4/linux-2.4.22-pre10-full/include/linux/capability.h:17,
from
/home/bunk/linux/kernel-2.4/linux-2.4.22-pre10-full/include/linux/binfmts.h:5,
from
/home/bunk/linux/kernel-2.4/linux-2.4.22-pre10-full/include/linux/sched.h:9,

                 from tipar.c:49:

/home/bunk/linux/kernel-2.4/linux-2.4.22-pre10-full/include/linux/kdev_t.h:81:1:
warning: this is the location of the previous definition
...

<-- snip -->

The minor #define was added to kdev_t.h in 2.4.18-pre4. The following patch adjusts tipar.c accordingly. Besides this, it changes the kernel version chack from a private macro to use the KERNEL_VERSION in kernel.h.

@@ -71,9 +71,11 @@
 #define DRIVER_DESC    "Device driver for TI/PC parallel link cables"
 #define DRIVER_LICENSE "GPL"
 
-#define VERSION(ver,rel,seq) (((ver)<<16) | ((rel)<<8) | (seq))
-#if LINUX_VERSION_CODE < VERSION(2,5,0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,18)
 # define minor(x) MINOR(x)
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
 # define need_resched() (current->need_resched)
 #endif
 

I've tested the compilation with 2.4.22-pre10.

Please apply
Adrian

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed