linux-kernel - [PATCH 2/3] drivers/net: Correct use of request_region/request_mem

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Message-ID: <Pine.LNX.4.64.0908090943210.13271@ask.diku.dk>
Date:	Sun, 9 Aug 2009 09:43:42 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH 2/3] drivers/net: Correct use of request_region/request_mem_region

From: Julia Lawall <julia@...u.dk>

request_mem_region should be used with release_mem_region, not request_region.

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

// <smpl>
@r2@
expression start;
@@

request_mem_region(start,...)

@b2@
expression r2.start;
@@

request_region(start,...)

@depends on !b2@
expression r2.start;
expression E;
@@

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

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

---
 drivers/net/jazzsonic.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff -u -p a/drivers/net/jazzsonic.c b/drivers/net/jazzsonic.c
--- a/drivers/net/jazzsonic.c
+++ b/drivers/net/jazzsonic.c
@@ -203,7 +203,7 @@ static int __devinit sonic_probe1(struct
 
 	return 0;
 out:
-	release_region(dev->base_addr, SONIC_MEM_SIZE);
+	release_mem_region(dev->base_addr, SONIC_MEM_SIZE);
 	return err;
 }
 
@@ -247,7 +247,7 @@ static int __devinit jazz_sonic_probe(st
 	return 0;
 
 out1:
-	release_region(dev->base_addr, SONIC_MEM_SIZE);
+	release_mem_region(dev->base_addr, SONIC_MEM_SIZE);
 out:
 	free_netdev(dev);
 
@@ -269,7 +269,7 @@ static int __devexit jazz_sonic_device_r
 	unregister_netdev(dev);
 	dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
 	                  lp->descriptors, lp->descriptors_laddr);
-	release_region (dev->base_addr, SONIC_MEM_SIZE);
+	release_mem_region(dev->base_addr, SONIC_MEM_SIZE);
 	free_netdev(dev);
 
 	return 0;
--
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