From 809aa5048fb7e7fd3bf0aa1fb169c42db0f63b08 Mon Sep 17 00:00:00 2001
From: James Bottomley <James.Bottomley@SteelEye.com>
Date: Wed, 9 May 2007 02:33:29 -0700
Subject: [PATCH] mca: fix bus matching
There's a bug in the MCA bus matching algorithm in that it promotes from
signed short to int before comparing with the actual id and does sign
extension on anything > 0x7fff (which means that pos ids > 0x7fff never get
correctly matched).
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/mca/mca-bus.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mca/mca-bus.c b/drivers/mca/mca-bus.c
index da862e4632dd..a70fe00aea16 100644
--- a/drivers/mca/mca-bus.c
+++ b/drivers/mca/mca-bus.c
@@ -47,7 +47,7 @@ static int mca_bus_match (struct device *dev, struct device_driver *drv)
{
struct mca_device *mca_dev = to_mca_device (dev);
struct mca_driver *mca_drv = to_mca_driver (drv);
- const short *mca_ids = mca_drv->id_table;
+ const unsigned short *mca_ids = mca_drv->id_table;
int i;
if (!mca_ids)
--
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