From: Amol Lad <amol@verismonetworks.com>

ioremap must be balanced by an iounmap and failing to do so can result in a
memory leak.

Signed-off-by: Amol Lad <amol@verismonetworks.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: adam radford <aradford@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/scsi/3w-9xxx.c |    5 +++++
 1 file changed, 5 insertions(+)

diff -puN drivers/scsi/3w-9xxx.c~ioremap-balanced-with-iounmap-drivers-scsi-3w-9xxxc drivers/scsi/3w-9xxx.c
--- a/drivers/scsi/3w-9xxx.c~ioremap-balanced-with-iounmap-drivers-scsi-3w-9xxxc
+++ a/drivers/scsi/3w-9xxx.c
@@ -2147,6 +2147,8 @@ out_remove_host:
 	scsi_remove_host(host);
 out_release_mem_region:
 	pci_release_regions(pdev);
+	if (tw_dev->base_addr)
+		iounmap(tw_dev->base_addr);
 out_free_device_extension:
 	twa_free_device_extension(tw_dev);
 	scsi_host_put(host);
@@ -2173,6 +2175,9 @@ static void twa_remove(struct pci_dev *p
 	/* Free up the IRQ */
 	free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
 
+	/* Free IO mem */
+	iounmap(tw_dev->base_addr);
+
 	/* Shutdown the card */
 	__twa_shutdown(tw_dev);
 
_