From 41b97ab5050088cd23692d578e7294c7be26109a Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Thu, 15 Apr 2010 19:01:53 +0200
Subject: [PATCH] pcmcia: fix ioport size calculation in rsrc_nonstatic
Size needs to be calculated after manipulating with the start value.
Reported-by: Komuro <komurojun-mbn@nifty.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
drivers/pcmcia/rsrc_nonstatic.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 1178a823fbc6..a6eb7b59ba9f 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -810,7 +810,7 @@ static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned
static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end)
{
struct socket_data *data = s->resource_data;
- unsigned long size = end - start + 1;
+ unsigned long size;
int ret = 0;
#if defined(CONFIG_X86)
@@ -820,6 +820,8 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long
start = 0x100;
#endif
+ size = end - start + 1;
+
if (end < start)
return -EINVAL;
--
2.20.1