Increment the pointer rather than its value.
This appears to be a logic error.

$ gcc (Debian 4.4.2-8) 4.4.2
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ make
...
drivers/staging/otus/80211core/ctkip.c: In function 'zfTkipInit':
drivers/staging/otus/80211core/ctkip.c:267: warning: value computed is not
used
...

Signed-off-by: Simon Horman <horms@verge.net.au>

Index: linux-2.6/drivers/staging/otus/80211core/ctkip.c
===================================================================
--- linux-2.6.orig/drivers/staging/otus/80211core/ctkip.c	2010-01-08 17:08:37.000000000 +1100
+++ linux-2.6/drivers/staging/otus/80211core/ctkip.c	2010-01-08 17:09:40.000000000 +1100
@@ -264,7 +264,7 @@ void zfTkipInit(u8_t* key, u8_t* ta, str
     for(i=0; i<4; i++)      // initiv is little endian
     {
         iv32 += *initIv<<(i*8);
-        *initIv++;
+        initIv++;
     }
 
     pSeed->iv32 = iv32+1; // Force Recalculating on Tkip Phase1

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