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											2012-02-02 15:53:08 +01:00
										 |  |  | /// 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: | 
					
						
							| 
									
										
										
										
											2013-06-20 13:10:56 +02:00
										 |  |  | // Options: --no-includes --include-headers | 
					
						
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											2012-02-02 15:53:08 +01:00
										 |  |  | 
 | 
					
						
							|  |  |  | 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) |