patch for mkfs.ubifs devtable.c increment in dev_table is wrongly interpreted

[Daniel Neukomm <Neukomm@vtxmail.ch>]

patch for mkfs.ubifs devtable.c increment in dev_table is wrongly 
interpreted

with the device table one can add /dev entries to the root file system 
image.
The device table file contains among others the fields minor, start, 
increment and count.
If there is an entry with minor=0 start=0 increment =32 and count=4 the 
mkfs.ubifs makes
128 device entries, with minor numbers from 0 to 127
The correct version makes 4 entries with minor number 0,32,64,96.

/dev/mtd c 640 0 0 90 0 0  2 7
This gives 14 devices /dev/mtdXX instead of  7 devices.
Due to this error mtd_debug info /dev/mtd3 delivers the information of 
/dev/mtd1 instead of. 

diff --git a/mkfs.ubifs/devtable.c b/mkfs.ubifs/devtable.c
index 236a6e7..e2d96dc 100644
--- a/mkfs.ubifs/devtable.c
+++ b/mkfs.ubifs/devtable.c
@@ -248,7 +248,7 @@ static int interpret_table_entry(const char *line)
                        goto out_free;
                }
        } else {
-               int i, num = start + increment * count, len = 
strlen(name) + 20;
+               int i, num = start + count, len = strlen(name) + 20;
                char *nm;

                for (i = start; i < num; i++) {
@@ -262,7 +262,7 @@ static int interpret_table_entry(const char *line)
                        nh_elt->mode = mode;
                        nh_elt->uid = uid;
                        nh_elt->gid = gid;
-                       nh_elt->dev = makedev(major, minor + i - start);
+                       nh_elt->dev = makedev(major, minor + (i - 
start)*increment);

                        nm = malloc(len);
                        if (!nm) {