linux-kernel - [PATCH 1/3] drivers/isdn/hisax: Correct use of request_region/request_mem

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Date:	Sun, 9 Aug 2009 09:43:20 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	Karsten Keil <isdn@...ux-pingi.de>,
	isdn4linux@...tserv.isdn4linux.de, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH 1/3] drivers/isdn/hisax: Correct use of request_region/request_mem_region

From: Julia Lawall <julia@...u.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@...u.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
--
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