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[S390] cio: add missing compat ptr conversion 

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2010-01-13 20:44:30 +01:00 committed by Martin Schwidefsky
parent 880348653e
commit 44ee6a8564
1 changed files with 15 additions and 8 deletions
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23
drivers/s390/cio/chsc_sch.c
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@ -12,6 +12,7 @@
#include <linux/uaccess.h>
#include <linux/miscdevice.h>
#include <asm/compat.h>
#include <asm/cio.h>
#include <asm/chsc.h>
#include <asm/isc.h>
@ -770,24 +771,30 @@ static int chsc_ioctl_dcal(void __user *user_dcal)
static long chsc_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
void __user *argp;
CHSC_MSG(2, "chsc_ioctl called, cmd=%x\n", cmd);
if (is_compat_task())
argp = compat_ptr(arg);
else
argp = (void __user *)arg;
switch (cmd) {
case CHSC_START:
return chsc_ioctl_start((void __user *)arg);
return chsc_ioctl_start(argp);
case CHSC_INFO_CHANNEL_PATH:
return chsc_ioctl_info_channel_path((void __user *)arg);
return chsc_ioctl_info_channel_path(argp);
case CHSC_INFO_CU:
return chsc_ioctl_info_cu((void __user *)arg);
return chsc_ioctl_info_cu(argp);
case CHSC_INFO_SCH_CU:
return chsc_ioctl_info_sch_cu((void __user *)arg);
return chsc_ioctl_info_sch_cu(argp);
case CHSC_INFO_CI:
return chsc_ioctl_conf_info((void __user *)arg);
return chsc_ioctl_conf_info(argp);
case CHSC_INFO_CCL:
return chsc_ioctl_conf_comp_list((void __user *)arg);
return chsc_ioctl_conf_comp_list(argp);
case CHSC_INFO_CPD:
return chsc_ioctl_chpd((void __user *)arg);
return chsc_ioctl_chpd(argp);
case CHSC_INFO_DCAL:
return chsc_ioctl_dcal((void __user *)arg);
return chsc_ioctl_dcal(argp);
default: /* unknown ioctl number */
return -ENOIOCTLCMD;
}