42 lines
		
	
	
	
		
			825 B
			
		
	
	
	
		
			Text
		
	
	
	
	
	
		
		
			
		
	
	
			42 lines
		
	
	
	
		
			825 B
			
		
	
	
	
		
			Text
		
	
	
	
	
	
|   | /// PTR_ERR should be applied before its argument is reassigned, typically | ||
|  | /// to NULL | ||
|  | /// | ||
|  | // Confidence: High | ||
|  | // Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2. | ||
|  | // Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.  GPLv2. | ||
|  | // URL: http://coccinelle.lip6.fr/ | ||
|  | // Comments: | ||
|  | // Options: -no_includes -include_headers | ||
|  | 
 | ||
|  | virtual org | ||
|  | virtual report | ||
|  | virtual context | ||
|  | 
 | ||
|  | @r exists@ | ||
|  | expression e,e1; | ||
|  | constant c; | ||
|  | position p1,p2; | ||
|  | @@ | ||
|  | 
 | ||
|  | *e@p1 = c | ||
|  | ... when != e = e1 | ||
|  |     when != &e | ||
|  |     when != true IS_ERR(e) | ||
|  | *PTR_ERR@p2(e) | ||
|  | 
 | ||
|  | @script:python depends on org@ | ||
|  | p1 << r.p1; | ||
|  | p2 << r.p2; | ||
|  | @@ | ||
|  | 
 | ||
|  | cocci.print_main("PTR_ERR",p2) | ||
|  | cocci.print_secs("assignment",p1) | ||
|  | 
 | ||
|  | @script:python depends on report@ | ||
|  | p1 << r.p1; | ||
|  | p2 << r.p2; | ||
|  | @@ | ||
|  | 
 | ||
|  | msg = "ERROR: PTR_ERR applied after initialization to constant on line %s" % (p1[0].line) | ||
|  | coccilib.report.print_report(p2[0],msg) |