[PATCH -mm] riva CalcStateExt gcc 4.1 warning fix

[Daniel Walker <dwalker@mvista.com>]

This could be a bug. The return from CalcVClock isn't checked
so the variables in questions could be random data ..

Fixes the following warning,

drivers/video/riva/riva_hw.c: In function 'CalcStateExt':
drivers/video/riva/riva_hw.c:1241: warning: 'p' may be used uninitialized in this function
drivers/video/riva/riva_hw.c:1241: warning: 'n' may be used uninitialized in this function
drivers/video/riva/riva_hw.c:1241: warning: 'm' may be used uninitialized in this function
drivers/video/riva/riva_hw.c:1241: warning: 'VClk' may be used uninitialized in this function


Signed-Off-By: Daniel Walker <dwalker@mvista.com>

Index: linux-2.6.16/drivers/video/riva/riva_hw.c
===================================================================
--- linux-2.6.16.orig/drivers/video/riva/riva_hw.c
+++ linux-2.6.16/drivers/video/riva/riva_hw.c
@@ -1238,7 +1238,12 @@ static void CalcStateExt
     int            dotClock
 )
 {
-    int pixelDepth, VClk, m, n, p;
+    int pixelDepth;
+    int VClk = 0;
+    int m = 0;
+    int n = 0;
+    int p = 0;
+
     /*
      * Save mode parameters.
      */
-
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