linux-kernel - [235/262] ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap

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Message-Id: <20111109212724.243286864@clark.kroah.org>
Date:	Wed, 09 Nov 2011 13:29:17 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Tony Luck <tony.luck@...el.com>,
	Len Brown <len.brown@...el.com>
Subject: [235/262] ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap_fast()

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

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

From: "Luck, Tony" <tony.luck@...el.com>

commit 3bf3f8b19d2bfccc40f13c456bf339fd8f535ebc upstream.

Callers to __acpi_ioremap_fast() pass the bit_width that they found in the
acpi_generic_address structure. Convert from bits to bytes when passing to
__acpi_find_iomap() - as it wants to see bytes, not bits.

Signed-off-by: Tony Luck <tony.luck@...el.com>
Signed-off-by: Len Brown <len.brown@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/acpi/atomicio.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/acpi/atomicio.c
+++ b/drivers/acpi/atomicio.c
@@ -76,7 +76,7 @@ static void __iomem *__acpi_ioremap_fast
 {
 	struct acpi_iomap *map;
 
-	map = __acpi_find_iomap(paddr, size);
+	map = __acpi_find_iomap(paddr, size/8);
 	if (map)
 		return map->vaddr + (paddr - map->paddr);
 	else


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