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From: Julia Lawall <julia@diku.dk>
To: Karsten Keil <isdn@linux-pingi.de>,
	isdn4linux@listserv.isdn4linux.de, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [PATCH 1/3] drivers/isdn/hisax: Correct use of request_region/request_mem_region
Date: Sun, 9 Aug 2009 09:43:20 +0200 (CEST)	[thread overview]
Message-ID: <Pine.LNX.4.64.0908090942560.13271@ask.diku.dk> (raw)

From: Julia Lawall <julia@diku.dk>

request_region should be used with release_region, not request_mem_region.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r1@
expression start;
@@

request_region(start,...)

@b1@
expression r1.start;
@@

request_mem_region(start,...)

@depends on !b1@
expression r1.start;
expression E;
@@

- release_mem_region
+ release_region
  (start,E)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 drivers/isdn/hisax/isurf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -u -p a/drivers/isdn/hisax/isurf.c b/drivers/isdn/hisax/isurf.c
--- a/drivers/isdn/hisax/isurf.c
+++ b/drivers/isdn/hisax/isurf.c
@@ -125,7 +125,7 @@ release_io_isurf(struct IsdnCardState *c
 {
 	release_region(cs->hw.isurf.reset, 1);
 	iounmap(cs->hw.isurf.isar);
-	release_mem_region(cs->hw.isurf.phymem, ISURF_IOMEM_SIZE);
+	release_region(cs->hw.isurf.phymem, ISURF_IOMEM_SIZE);
 }
 
 static void

             reply	other threads:[~2009-08-09  7:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-09  7:43 Julia Lawall [this message]
2009-08-09  9:51 ` Julia Lawall
2009-08-09 12:20   ` Karsten Keil
2009-08-09 12:28     ` Julia Lawall
2009-08-09 12:44     ` Julia Lawall

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