[S390] fs3270: add missing compat ptr conversion

Add missing compat ptr conversion including two additional
whitespace changes that aren't worth a separate patch.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 247b2b9..31c59b0 100644 (file)
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -15,6 +15,7 @@
 #include <linux/types.h>
 #include <linux/smp_lock.h>
 
+#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
 #include <asm/ebcdic.h>
@@ -322,6 +323,7 @@ fs3270_write(struct file *filp, const char __user *data, size_t count, loff_t *o
 static long
 fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
+       char __user *argp;
        struct fs3270 *fp;
        struct raw3270_iocb iocb;
        int rc;
@@ -329,6 +331,10 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
        fp = filp->private_data;
        if (!fp)
                return -ENODEV;
+       if (is_compat_task())
+               argp = compat_ptr(arg);
+       else
+               argp = (char __user *)arg;
        rc = 0;
        mutex_lock(&fs3270_mutex);
        switch (cmd) {
@@ -339,10 +345,10 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                fp->write_command = arg;
                break;
        case TUBGETI:
-               rc = put_user(fp->read_command, (char __user *) arg);
+               rc = put_user(fp->read_command, argp);
                break;
        case TUBGETO:
-               rc = put_user(fp->write_command,(char __user *) arg);
+               rc = put_user(fp->write_command, argp);
                break;
        case TUBGETMOD:
                iocb.model = fp->view.model;
@@ -351,8 +357,7 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                iocb.pf_cnt = 24;
                iocb.re_cnt = 20;
                iocb.map = 0;
-               if (copy_to_user((char __user *) arg, &iocb,
-                                sizeof(struct raw3270_iocb)))
+               if (copy_to_user(argp, &iocb, sizeof(struct raw3270_iocb)))
                        rc = -EFAULT;
                break;
        }
@@ -511,8 +516,8 @@ static const struct file_operations fs3270_fops = {
        .write           = fs3270_write,        /* write */
        .unlocked_ioctl  = fs3270_ioctl,        /* ioctl */
        .compat_ioctl    = fs3270_ioctl,        /* ioctl */
-       .open           = fs3270_open,          /* open */
-       .release        = fs3270_close,         /* release */
+       .open            = fs3270_open,         /* open */
+       .release         = fs3270_close,        /* release */
 };
 
 /*