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>

diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 1178a823fbc64cfddecf12241cc81cff8751d043..a6eb7b59ba9f805c68c13aacda0b7d886a6a9803 100644 (file)
--- 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;