[tkreuzer] 50450: [ROSSYM] The function dexec uses the varable p only in one location where its checked against nil, It neither initialized, not used anywhere else. This is probably a typo and b->p...

Author: tkreuzer
Date: Thu Jan 20 15:39:55 2011
New Revision: 50450

URL: http://svn.reactos.org/svn/reactos?rev=50450&view=rev
Log:
[ROSSYM]
The function dexec uses the varable p only in one location where its checked against nil,
It neither initialized, not used anywhere else. This is probably a typo and b->p was
meant. Yes I'm completely guessing, but this code doesn't give any other chance
then guessing and it will probably not be worse then using an uninitialized variable...
@original author: please review.

Modified:
    branches/cmake-bringup/lib/rossym/dwarfcfa.c

Modified: branches/cmake-bringup/lib/rossym/dwarfcfa.c
URL:
http://svn.reactos.org/svn/reactos/branches/cmake-bringup/lib/rossym/dwarfc…
==============================================================================
--- branches/cmake-bringup/lib/rossym/dwarfcfa.c [iso-8859-1] (original)
+++ branches/cmake-bringup/lib/rossym/dwarfcfa.c [iso-8859-1] Thu Jan 20 15:39:55 2011
@@ -1,11 +1,11 @@
 /*
  * Dwarf call frame unwinding.
  *
- * The call frame unwinding values are encoded using a state machine 
- * like the pc<->line mapping, but it's a different machine.  
- * The expressions to generate the old values are similar in function to the 
+ * The call frame unwinding values are encoded using a state machine
+ * like the pc<->line mapping, but it's a different machine.
+ * The expressions to generate the old values are similar in function to the
  * ``dwarf expressions'' used for locations in the code, but of course not
- * the same encoding.  
+ * the same encoding.
  */
 
 #define NTOSAPI
@@ -103,7 +103,7 @@
 /*
  * XXX This turns out to be much more expensive than the actual
  * running of the machine in dexec.  It probably makes sense to
- * cache the last 10 or so fde's we've found, since stack traces 
+ * cache the last 10 or so fde's we've found, since stack traces
  * will keep asking for the same info over and over.
  */
 static int
@@ -173,7 +173,7 @@
 	}
 	werrstr("cannot find call frame information for pc 0x%lux", pc);
 	return -1;
-			
+
 }
 
 static int
@@ -191,7 +191,7 @@
 {
 	int c;
 	long arg1, arg2;
-	DwarfExpr *e, **p;
+	DwarfExpr *e;
 
 	for(;;){
 		if(b->p == b->ep){
@@ -215,7 +215,7 @@
 			if(locstop)
 				return 0;
 			continue;
-		
+
 		case 2:	/* offset rule */
 			arg1 = c&0x3F;
 			arg2 = dwarfget128(b);
@@ -310,7 +310,7 @@
 				free(e);
 				return -1;
 			}
-			if(p == nil){
+			if(b->p == nil){
 				free(e);
 				return -1;
 			}
@@ -342,12 +342,12 @@
 			s->cfa->offset = arg2;
 			continue;
 
-		case 0x0D:	/* def cfa register */	
+		case 0x0D:	/* def cfa register */
 			arg1 = dwarfget128(b);
 			if(trace) werrstr("cfa reg r%ld\n", arg1);
 			if(s->cfa->type != RuleRegOff){
 				werrstr("change CFA register but CFA not in register+offset form");
-				return -1;	
+				return -1;
 			}
 			if(checkreg(s, arg1) < 0)
 				return -1;
@@ -401,7 +401,7 @@
 			return -1;
 		}
 	}
-	/* not reached */		
+	/* not reached */
 }