Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] tape_char: add missing compat_ptr conversion
  [S390] zcrypt: add sanity check before copy_from_user()
  [S390] unwire sys_recvmmsg again
  [S390] con3215: remove empty ioctl function
  [S390] dasd: add proper compat pointer conversion for symmetrix ioctl
  [S390] mmap: add missing compat_ptr conversion to both mmap compat syscalls
  [S390] bug: implement arch specific __WARN macro
  [S390] Move __cpu_logical_map to smp.c
  [S390] tape_block: remove ioctl function
  [S390] smp: remove volatile type quilifier from __cpu_logical_map
  [S390] smp: setup smp_processor_id early
  [S390] use helpers for rlimits
  [S390] fs3270: add missing compat ptr conversion
  [S390] vmcp: add missing compat ptr conversion
  [S390] cio: add missing compat ptr conversion
  [S390] dasd: add missing compat ptr conversion
  [S390] remove superfluous TIF_USEDFPU bit
  [S390] duplicate SIGTRAP on signal delivery.
  [S390] clear TIF_SINGLE_STEP for new process.
  [S390] fix loading of PER control registers for utrace.

1 files changed, 15 insertions, 8 deletions

diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index cc5144b6f9d9..c84ac9443079 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -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 @@ out_free:
 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;
 	}