Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull misc filesystem fixes from Al Viro:
 "Assorted fixes all over the place: literally nothing in common, could
  have been three separate pull requests.

  All are simple regression fixes, but not for anything from this cycle"

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  ceph_wait_on_conflict_unlink(): grab reference before dropping ->d_lock
  io_uring: kiocb_done() should *not* trust ->ki_pos if ->{read,write}_iter() failed
  sparc32: fix a braino in fault handling in csum_and_copy_..._user()

Author: torvalds

arch/sparc/lib/checksum_32.S

@@ -453,5 +453,5 @@ ccslow:	cmp	%g1, 0
  * we only bother with faults on loads... */
 
 cc_fault:
-	ret
+	retl
 	 clr	%o0

fs/ceph/mds_client.c

@@ -861,8 +861,8 @@ int ceph_wait_on_conflict_unlink(struct dentry *dentry)
 		if (!d_same_name(udentry, pdentry, &dname))
 			goto next;
 
+		found = dget_dlock(udentry);
 		spin_unlock(&udentry->d_lock);
-		found = dget(udentry);
 		break;
 next:
 		spin_unlock(&udentry->d_lock);

io_uring/rw.c

@@ -339,7 +339,7 @@ static int kiocb_done(struct io_kiocb *req, ssize_t ret,
 	struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
 	unsigned final_ret = io_fixup_rw_res(req, ret);
 
-	if (req->flags & REQ_F_CUR_POS)
+	if (ret >= 0 && req->flags & REQ_F_CUR_POS)
 		req->file->f_pos = rw->kiocb.ki_pos;
 	if (ret >= 0 && (rw->kiocb.ki_complete == io_complete_rw)) {
 		if (!__io_complete_rw_common(req, ret)) {