linux-kernel - [ 33/50] 3c59x: fix freeing nonexistent resource on driver unload

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Message-Id: <20130517213846.175743026@linuxfoundation.org>
Date:	Fri, 17 May 2013 14:47:08 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Matthew Whitehead <tedheadster@...il.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [ 33/50] 3c59x: fix freeing nonexistent resource on driver unload

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------


From: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>

[ Upstream commit c81400be716aa4c76f6ebf339ba94358dbbf6da6 ]

When unloading the driver that drives an EISA board, a message similar to the
following one is displayed:

Trying to free nonexistent resource <0000000000013000-000000000001301f>

Then an user is unable to reload the driver because the resource it requested in
the previous load hasn't been freed. This happens most probably due to a typo in
vortex_eisa_remove() which calls release_region() with 'dev->base_addr'  instead
of 'edev->base_addr'...

Reported-by: Matthew Whitehead <tedheadster@...il.com>
Tested-by: Matthew Whitehead <tedheadster@...il.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/3com/3c59x.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -951,7 +951,7 @@ static int __devexit vortex_eisa_remove(
 
 	unregister_netdev(dev);
 	iowrite16(TotalReset|0x14, ioaddr + EL3_CMD);
-	release_region(dev->base_addr, VORTEX_TOTAL_SIZE);
+	release_region(edev->base_addr, VORTEX_TOTAL_SIZE);
 
 	free_netdev(dev);
 	return 0;


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