1 files changed, 17 insertions, 10 deletions

diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index 83ae9a852f00..b0ac44b27127 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/cdev.h>
+#include <linux/smp_lock.h>
 
 #include <asm/uaccess.h>
 #include <asm/cio.h>
@@ -277,7 +278,8 @@ static void ur_int_handler(struct ccw_device *cdev, unsigned long intparm,
 	struct urdev *urd;
 
 	TRACE("ur_int_handler: intparm=0x%lx cstat=%02x dstat=%02x res=%u\n",
-	      intparm, irb->scsw.cstat, irb->scsw.dstat, irb->scsw.count);
+	      intparm, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat,
+	      irb->scsw.cmd.count);
 
 	if (!intparm) {
 		TRACE("ur_int_handler: unsolicited interrupt\n");
@@ -288,7 +290,7 @@ static void ur_int_handler(struct ccw_device *cdev, unsigned long intparm,
 	/* On special conditions irb is an error pointer */
 	if (IS_ERR(irb))
 		urd->io_request_rc = PTR_ERR(irb);
-	else if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END))
+	else if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END))
 		urd->io_request_rc = 0;
 	else
 		urd->io_request_rc = -EIO;
@@ -343,7 +345,7 @@ static int get_urd_class(struct urdev *urd)
 	cc = diag210(&ur_diag210);
 	switch (cc) {
 	case 0:
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 	case 2:
 		return ur_diag210.vrdcvcla; /* virtual device class */
 	case 3:
@@ -619,7 +621,7 @@ static int verify_device(struct urdev *urd)
 	case DEV_CLASS_UR_I:
 		return verify_uri_device(urd);
 	default:
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 	}
 }
 
@@ -652,7 +654,7 @@ static int get_file_reclen(struct urdev *urd)
 	case DEV_CLASS_UR_I:
 		return get_uri_file_reclen(urd);
 	default:
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 	}
 }
 
@@ -668,7 +670,7 @@ static int ur_open(struct inode *inode, struct file *file)
 
 	if (accmode == O_RDWR)
 		return -EACCES;
-
+	lock_kernel();
 	/*
 	 * We treat the minor number as the devno of the ur device
 	 * to find in the driver tree.
@@ -676,8 +678,10 @@ static int ur_open(struct inode *inode, struct file *file)
 	devno = MINOR(file->f_dentry->d_inode->i_rdev);
 
 	urd = urdev_get_from_devno(devno);
-	if (!urd)
-		return -ENXIO;
+	if (!urd) {
+		rc = -ENXIO;
+		goto out;
+	}
 
 	spin_lock(&urd->open_lock);
 	while (urd->open_flag) {
@@ -720,6 +724,7 @@ static int ur_open(struct inode *inode, struct file *file)
 		goto fail_urfile_free;
 	urf->file_reclen = rc;
 	file->private_data = urf;
+	unlock_kernel();
 	return 0;
 
 fail_urfile_free:
@@ -730,6 +735,8 @@ fail_unlock:
 	spin_unlock(&urd->open_lock);
 fail_put:
 	urdev_put(urd);
+out:
+	unlock_kernel();
 	return rc;
 }
 
@@ -820,7 +827,7 @@ static int ur_probe(struct ccw_device *cdev)
 		goto fail_remove_attr;
 	}
 	if ((urd->class != DEV_CLASS_UR_I) && (urd->class != DEV_CLASS_UR_O)) {
-		rc = -ENOTSUPP;
+		rc = -EOPNOTSUPP;
 		goto fail_remove_attr;
 	}
 	spin_lock_irq(get_ccwdev_lock(cdev));
@@ -885,7 +892,7 @@ static int ur_set_online(struct ccw_device *cdev)
 	} else if (urd->cdev->id.cu_type == PRINTER_DEVTYPE) {
 		sprintf(node_id, "vmprt-%s", cdev->dev.bus_id);
 	} else {
-		rc = -ENOTSUPP;
+		rc = -EOPNOTSUPP;
 		goto fail_free_cdev;
 	}