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Avoid NULL pointer dereference in xf86TokenToOptinfo if token not found 

Reported by parfait 1.1 code analyzer:

Error: Null pointer dereference (CWE 476)
   Read from null pointer 'p'
        at line 746 of hw/xfree86/common/xf86Option.c in function 'xf86TokenToOptName'.
          Function 'xf86TokenToOptinfo' may return constant 'NULL' at line 721, called at line 745.
          Null pointer introduced at line 721 in function 'xf86TokenToOptinfo'.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Alan Coopersmith 2013-01-27 13:50:30 -08:00
parent c1c01e3508
commit 08f75d3a96
1 changed files with 1 additions and 1 deletions
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2
hw/xfree86/common/xf86Option.c
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@ -743,7 +743,7 @@ xf86TokenToOptName(const OptionInfoRec * table, int token)
const OptionInfoRec *p;
p = xf86TokenToOptinfo(table, token);
return p->name;
return p ? p->name : NULL;
}
Bool