Merge branch 'akpm' (Andrew's patch bomb)

Merge the emailed seties of 19 patches from Andrew Morton

* akpm:
  rapidio/tsi721: fix queue wrapping bug in inbound doorbell handler
  memcg: fix mapcount check in move charge code for anonymous page
  mm: thp: fix BUG on mm->nr_ptes
  alpha: fix 32/64-bit bug in futex support
  memcg: fix GPF when cgroup removal races with last exit
  debugobjects: Fix selftest for static warnings
  floppy/scsi: fix setting of BIO flags
  memcg: fix deadlock by inverting lrucare nesting
  drivers/rtc/rtc-r9701.c: fix crash in r9701_remove()
  c2port: class_create() returns an ERR_PTR
  pps: class_create() returns an ERR_PTR, not NULL
  hung_task: fix the broken rcu_lock_break() logic
  vfork: kill PF_STARTING
  coredump_wait: don't call complete_vfork_done()
  vfork: make it killable
  vfork: introduce complete_vfork_done()
  aio: wake up waiters when freeing unused kiocbs
  kprobes: return proper error code from register_kprobe()
  kmsg_dump: don't run on non-error paths by default

6 files changed, 16 insertions, 15 deletions

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 9baf11e86362..744f078f4dd8 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3832,7 +3832,7 @@ static int __floppy_read_block_0(struct block_device *bdev)
 	bio.bi_size = size;
 	bio.bi_bdev = bdev;
 	bio.bi_sector = 0;
-	bio.bi_flags = BIO_QUIET;
+	bio.bi_flags = (1 << BIO_QUIET);
 	init_completion(&complete);
 	bio.bi_private = &complete;
 	bio.bi_end_io = floppy_rb0_complete;
diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
index 19fc7c1cb428..f428d86bfc10 100644
--- a/drivers/misc/c2port/core.c
+++ b/drivers/misc/c2port/core.c
@@ -984,9 +984,9 @@ static int __init c2port_init(void)
 		" - (C) 2007 Rodolfo Giometti\n");
 
 	c2port_class = class_create(THIS_MODULE, "c2port");
-	if (!c2port_class) {
+	if (IS_ERR(c2port_class)) {
 		printk(KERN_ERR "c2port: failed to allocate class\n");
-		return -ENOMEM;
+		return PTR_ERR(c2port_class);
 	}
 	c2port_class->dev_attrs = c2port_attrs;
 
diff --git a/drivers/pps/pps.c b/drivers/pps/pps.c
index 2baadd21b7a6..98fbe62694d4 100644
--- a/drivers/pps/pps.c
+++ b/drivers/pps/pps.c
@@ -369,9 +369,9 @@ static int __init pps_init(void)
 	int err;
 
 	pps_class = class_create(THIS_MODULE, "pps");
-	if (!pps_class) {
+	if (IS_ERR(pps_class)) {
 		pr_err("failed to allocate class\n");
-		return -ENOMEM;
+		return PTR_ERR(pps_class);
 	}
 	pps_class->dev_attrs = pps_attrs;
 
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 691b1ab1a3d0..30d2072f480b 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -410,13 +410,14 @@ static void tsi721_db_dpc(struct work_struct *work)
 	 */
 	mport = priv->mport;
 
-	wr_ptr = ioread32(priv->regs + TSI721_IDQ_WP(IDB_QUEUE));
-	rd_ptr = ioread32(priv->regs + TSI721_IDQ_RP(IDB_QUEUE));
+	wr_ptr = ioread32(priv->regs + TSI721_IDQ_WP(IDB_QUEUE)) % IDB_QSIZE;
+	rd_ptr = ioread32(priv->regs + TSI721_IDQ_RP(IDB_QUEUE)) % IDB_QSIZE;
 
 	while (wr_ptr != rd_ptr) {
 		idb_entry = (u64 *)(priv->idb_base +
 					(TSI721_IDB_ENTRY_SIZE * rd_ptr));
 		rd_ptr++;
+		rd_ptr %= IDB_QSIZE;
 		idb.msg = *idb_entry;
 		*idb_entry = 0;
 
diff --git a/drivers/rtc/rtc-r9701.c b/drivers/rtc/rtc-r9701.c
index 9beba49c3c5b..2853c2a6f10f 100644
--- a/drivers/rtc/rtc-r9701.c
+++ b/drivers/rtc/rtc-r9701.c
@@ -125,6 +125,13 @@ static int __devinit r9701_probe(struct spi_device *spi)
 	unsigned char tmp;
 	int res;
 
+	tmp = R100CNT;
+	res = read_regs(&spi->dev, &tmp, 1);
+	if (res || tmp != 0x20) {
+		dev_err(&spi->dev, "cannot read RTC register\n");
+		return -ENODEV;
+	}
+
 	rtc = rtc_device_register("r9701",
 				&spi->dev, &r9701_rtc_ops, THIS_MODULE);
 	if (IS_ERR(rtc))
@@ -132,13 +139,6 @@ static int __devinit r9701_probe(struct spi_device *spi)
 
 	dev_set_drvdata(&spi->dev, rtc);
 
-	tmp = R100CNT;
-	res = read_regs(&spi->dev, &tmp, 1);
-	if (res || tmp != 0x20) {
-		rtc_device_unregister(rtc);
-		return res;
-	}
-
 	return 0;
 }
 
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index 0cb39ff21171..f8fb2d691c0a 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -408,7 +408,7 @@ int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_s
 			kunmap_atomic(sdt, KM_USER0);
 		}
 
-		bio->bi_flags |= BIO_MAPPED_INTEGRITY;
+		bio->bi_flags |= (1 << BIO_MAPPED_INTEGRITY);
 	}
 
 	return 0;