5 files changed, 13 insertions, 29 deletions

diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index 68a82f3e2e92..d2f98e5829d4 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -190,19 +190,7 @@ static int qstat_show(struct seq_file *m, void *v)
 	return 0;
 }
 
-static int qstat_seq_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, qstat_show,
-			   file_inode(filp)->i_private);
-}
-
-static const struct file_operations debugfs_fops = {
-	.owner	 = THIS_MODULE,
-	.open	 = qstat_seq_open,
-	.read	 = seq_read,
-	.llseek  = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(qstat);
 
 static char *qperf_names[] = {
 	"Assumed adapter interrupts",
@@ -305,8 +293,8 @@ static void setup_debugfs_entry(struct qdio_q *q)
 	snprintf(name, QDIO_DEBUGFS_NAME_LEN, "%s_%d",
 		 q->is_input_q ? "input" : "output",
 		 q->nr);
-	q->debugfs_q = debugfs_create_file(name, S_IFREG | S_IRUGO | S_IWUSR,
-				q->irq_ptr->debugfs_dev, q, &debugfs_fops);
+	q->debugfs_q = debugfs_create_file(name, 0444,
+				q->irq_ptr->debugfs_dev, q, &qstat_fops);
 	if (IS_ERR(q->debugfs_q))
 		q->debugfs_q = NULL;
 }
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index fd77e46eb3b2..70a006ba4d05 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -387,8 +387,10 @@ static int ccwchain_calc_length(u64 iova, struct channel_program *cp)
 		 * orb specified one of the unsupported formats, we defer
 		 * checking for IDAWs in unsupported formats to here.
 		 */
-		if ((!cp->orb.cmd.c64 || cp->orb.cmd.i2k) && ccw_is_idal(ccw))
+		if ((!cp->orb.cmd.c64 || cp->orb.cmd.i2k) && ccw_is_idal(ccw)) {
+			kfree(p);
 			return -EOPNOTSUPP;
+		}
 
 		if ((!ccw_is_chain(ccw)) && (!ccw_is_tic(ccw)))
 			break;
@@ -528,7 +530,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 
 	ret = pfn_array_alloc_pin(pat->pat_pa, cp->mdev, ccw->cda, ccw->count);
 	if (ret < 0)
-		goto out_init;
+		goto out_unpin;
 
 	/* Translate this direct ccw to a idal ccw. */
 	idaws = kcalloc(ret, sizeof(*idaws), GFP_DMA | GFP_KERNEL);
diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
index f47d16b5810b..a10cec0e86eb 100644
--- a/drivers/s390/cio/vfio_ccw_drv.c
+++ b/drivers/s390/cio/vfio_ccw_drv.c
@@ -22,7 +22,7 @@
 #include "vfio_ccw_private.h"
 
 struct workqueue_struct *vfio_ccw_work_q;
-struct kmem_cache *vfio_ccw_io_region;
+static struct kmem_cache *vfio_ccw_io_region;
 
 /*
  * Helpers
@@ -134,14 +134,14 @@ static int vfio_ccw_sch_probe(struct subchannel *sch)
 	if (ret)
 		goto out_free;
 
-	ret = vfio_ccw_mdev_reg(sch);
-	if (ret)
-		goto out_disable;
-
 	INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
 	atomic_set(&private->avail, 1);
 	private->state = VFIO_CCW_STATE_STANDBY;
 
+	ret = vfio_ccw_mdev_reg(sch);
+	if (ret)
+		goto out_disable;
+
 	return 0;
 
 out_disable:
diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c
index f94aa01f9c36..cab17865aafe 100644
--- a/drivers/s390/cio/vfio_ccw_fsm.c
+++ b/drivers/s390/cio/vfio_ccw_fsm.c
@@ -130,7 +130,7 @@ static void fsm_io_request(struct vfio_ccw_private *private,
 	struct mdev_device *mdev = private->mdev;
 	char *errstr = "request";
 
-	private->state = VFIO_CCW_STATE_BOXED;
+	private->state = VFIO_CCW_STATE_BUSY;
 
 	memcpy(scsw, io_region->scsw_area, sizeof(*scsw));
 
@@ -216,11 +216,6 @@ fsm_func_t *vfio_ccw_jumptable[NR_VFIO_CCW_STATES][NR_VFIO_CCW_EVENTS] = {
 		[VFIO_CCW_EVENT_IO_REQ]		= fsm_io_request,
 		[VFIO_CCW_EVENT_INTERRUPT]	= fsm_irq,
 	},
-	[VFIO_CCW_STATE_BOXED] = {
-		[VFIO_CCW_EVENT_NOT_OPER]	= fsm_notoper,
-		[VFIO_CCW_EVENT_IO_REQ]		= fsm_io_busy,
-		[VFIO_CCW_EVENT_INTERRUPT]	= fsm_irq,
-	},
 	[VFIO_CCW_STATE_BUSY] = {
 		[VFIO_CCW_EVENT_NOT_OPER]	= fsm_notoper,
 		[VFIO_CCW_EVENT_IO_REQ]		= fsm_io_busy,
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h
index 078e46f9623d..08e9a7dc9176 100644
--- a/drivers/s390/cio/vfio_ccw_private.h
+++ b/drivers/s390/cio/vfio_ccw_private.h
@@ -63,7 +63,6 @@ enum vfio_ccw_state {
 	VFIO_CCW_STATE_NOT_OPER,
 	VFIO_CCW_STATE_STANDBY,
 	VFIO_CCW_STATE_IDLE,
-	VFIO_CCW_STATE_BOXED,
 	VFIO_CCW_STATE_BUSY,
 	/* last element! */
 	NR_VFIO_CCW_STATES