From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
---
drivers/s390/scsi/zfcp_cfdc.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/s390/scsi/zfcp_cfdc.c 2010-01-13 17:41:07.000000000 +0100
+++ b/drivers/s390/scsi/zfcp_cfdc.c 2010-01-13 17:45:39.000000000 +0100
@@ -12,6 +12,7 @@
#include <linux/types.h>
#include <linux/miscdevice.h>
+#include <asm/compat.h>
#include <asm/ccwdev.h>
#include "zfcp_def.h"
#include "zfcp_ext.h"
@@ -163,7 +164,7 @@ static void zfcp_cfdc_req_to_sense(struc
}
static long zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command,
- unsigned long buffer)
+ unsigned long arg)
{
struct zfcp_cfdc_data *data;
struct zfcp_cfdc_data __user *data_user;
@@ -175,7 +176,11 @@ static long zfcp_cfdc_dev_ioctl(struct f
if (command != ZFCP_CFDC_IOC)
return -ENOTTY;
- data_user = (void __user *) buffer;
+ if (is_compat_task())
+ data_user = compat_ptr(arg);
+ else
+ data_user = (void __user *)arg;
+
if (!data_user)
return -EINVAL;
--
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