1 files changed, 7 insertions, 9 deletions

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 77466c4faabb..848e3b64ea6e 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -409,17 +409,16 @@ static inline void qdio_stop_polling(struct qdio_q *q)
                 set_buf_state(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT);
 }
 
-static inline void account_sbals(struct qdio_q *q, int count)
+static inline void account_sbals(struct qdio_q *q, unsigned int count)
 {
-        int pos = 0;
+        int pos;
 
         q->q_stats.nr_sbal_total += count;
         if (count == QDIO_MAX_BUFFERS_MASK) {
                 q->q_stats.nr_sbals[7]++;
                 return;
         }
-        while (count >>= 1)
-                pos++;
+        pos = ilog2(count);
         q->q_stats.nr_sbals[pos]++;
 }
 
@@ -1234,12 +1233,10 @@ int qdio_free(struct ccw_device *cdev)
                 return -ENODEV;
 
         DBF_EVENT("qfree:%4x", cdev->private->schid.sch_no);
+        DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf abandoned");
         mutex_lock(&irq_ptr->setup_mutex);
 
-        if (irq_ptr->debug_area != NULL) {
-                debug_unregister(irq_ptr->debug_area);
-                irq_ptr->debug_area = NULL;
-        }
+        irq_ptr->debug_area = NULL;
         cdev->private->qdio_data = NULL;
         mutex_unlock(&irq_ptr->setup_mutex);
 
@@ -1276,7 +1273,8 @@ int qdio_allocate(struct qdio_initialize *init_data)
                 goto out_err;
 
         mutex_init(&irq_ptr->setup_mutex);
-        qdio_allocate_dbf(init_data, irq_ptr);
+        if (qdio_allocate_dbf(init_data, irq_ptr))
+                goto out_rel;
 
         /*
          * Allocate a page for the chsc calls in qdio_establish.