1 files changed, 7 insertions, 8 deletions

diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 80fe92a21f96..ef85bc8d9384 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -484,7 +484,7 @@ static int qib_tid_free(struct qib_ctxtdata *rcd, unsigned subctxt,
 			const struct qib_tid_info *ti)
 {
 	int ret = 0;
-	u32 tid, ctxttid, cnt, limit, tidcnt;
+	u32 tid, ctxttid, limit, tidcnt;
 	struct qib_devdata *dd = rcd->dd;
 	u64 __iomem *tidbase;
 	unsigned long tidmap[8];
@@ -520,7 +520,7 @@ static int qib_tid_free(struct qib_ctxtdata *rcd, unsigned subctxt,
 		/* just in case size changes in future */
 		limit = tidcnt;
 	tid = find_first_bit(tidmap, limit);
-	for (cnt = 0; tid < limit; tid++) {
+	for (; tid < limit; tid++) {
 		/*
 		 * small optimization; if we detect a run of 3 or so without
 		 * any set, use find_first_bit again.  That's mainly to
@@ -530,7 +530,7 @@ static int qib_tid_free(struct qib_ctxtdata *rcd, unsigned subctxt,
 		 */
 		if (!test_bit(tid, tidmap))
 			continue;
-		cnt++;
+
 		if (dd->pageshadow[ctxttid + tid]) {
 			struct page *p;
 			dma_addr_t phys;
@@ -1768,7 +1768,7 @@ static void unlock_expected_tids(struct qib_ctxtdata *rcd)
 {
 	struct qib_devdata *dd = rcd->dd;
 	int ctxt_tidbase = rcd->ctxt * dd->rcvtidcnt;
-	int i, cnt = 0, maxtid = ctxt_tidbase + dd->rcvtidcnt;
+	int i, maxtid = ctxt_tidbase + dd->rcvtidcnt;
 
 	for (i = ctxt_tidbase; i < maxtid; i++) {
 		struct page *p = dd->pageshadow[i];
@@ -1783,7 +1783,6 @@ static void unlock_expected_tids(struct qib_ctxtdata *rcd)
 		dma_unmap_page(&dd->pcidev->dev, phys, PAGE_SIZE,
 			       DMA_FROM_DEVICE);
 		qib_release_user_pages(&p, 1);
-		cnt++;
 	}
 }
 
@@ -2245,10 +2244,10 @@ static ssize_t qib_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	struct qib_ctxtdata *rcd = ctxt_fp(iocb->ki_filp);
 	struct qib_user_sdma_queue *pq = fp->pq;
 
-	if (!iter_is_iovec(from) || !from->nr_segs || !pq)
+	if (!from->user_backed || !from->nr_segs || !pq)
 		return -EINVAL;
 
-	return qib_user_sdma_writev(rcd, pq, from->iov, from->nr_segs);
+	return qib_user_sdma_writev(rcd, pq, iter_iov(from), from->nr_segs);
 }
 
 static struct class *qib_class;
@@ -2326,7 +2325,7 @@ int __init qib_dev_init(void)
 		goto done;
 	}
 
-	qib_class = class_create(THIS_MODULE, "ipath");
+	qib_class = class_create("ipath");
 	if (IS_ERR(qib_class)) {
 		ret = PTR_ERR(qib_class);
 		pr_err("Could not create device class (err %d)\n", -ret);