Merge tag 'v4.4-rc2' into patchwork

Linux 4.4-rc2

Several PCI media drivers got broken on Kernel 4.4-rc1, due to
pci_set_dma_mask() regressions. So, we need to add those fixes back
for the media drivers to work again.

* tag 'v4.4-rc2': (335 commits)
  Linux 4.4-rc2
  slab/slub: adjust kmem_cache_alloc_bulk API
  slub: add missing kmem cgroup support to kmem_cache_free_bulk
  slub: fix kmem cgroup bug in kmem_cache_alloc_bulk
  slub: optimize bulk slowpath free by detached freelist
  slub: support for bulk free with SLUB freelists
  parisc: Map kernel text and data on huge pages
  parisc: Add Huge Page and HUGETLBFS support
  parisc: Use long branch to do_syscall_trace_exit
  parisc: Increase initial kernel mapping to 32MB on 64bit kernel
  parisc: Initialize the fault vector earlier in the boot process.
  parisc: Add defines for Huge page support
  parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h
  serial: export fsl8250_handle_irq
  serial: 8250_mid: Add missing dependency
  tty: audit: Fix audit source
  serial: etraxfs-uart: Fix crash
  serial: fsl_lpuart: Fix earlycon support
  bcm63xx_uart: Use the device name when registering an interrupt
  tty: Fix direct use of tty buffer work
  ...

drivers/media/pci/cx23885/cx23885-core.c

@@ -1992,9 +1992,9 @@ static int cx23885_initdev(struct pci_dev *pci_dev,
 		(unsigned long long)pci_resource_start(pci_dev, 0));
 
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+	err = pci_set_dma_mask(pci_dev, 0xffffffff);
+	if (err) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
-		err = -EIO;
 		goto fail_context;
 	}
 

drivers/media/pci/cx25821/cx25821-core.c

@@ -1319,7 +1319,8 @@ static int cx25821_initdev(struct pci_dev *pci_dev,
 		dev->pci_lat, (unsigned long long)dev->base_io_addr);
 
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+	err = pci_set_dma_mask(pci_dev, 0xffffffff);
+	if (err) {
 		pr_err("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail_irq;

drivers/media/pci/cx88/cx88-alsa.c

@@ -890,9 +890,9 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
 		return err;
 	}
 
-	if (!pci_set_dma_mask(pci,DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(pci,DMA_BIT_MASK(32));
+	if (err) {
 		dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
-		err = -EIO;
 		cx88_core_put(core, pci);
 		return err;
 	}

drivers/media/pci/cx88/cx88-mpeg.c

@@ -393,7 +393,8 @@ static int cx8802_init_common(struct cx8802_dev *dev)
 	if (pci_enable_device(dev->pci))
 		return -EIO;
 	pci_set_master(dev->pci);
-	if (!pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32));
+	if (err) {
 		printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
 		return -EIO;
 	}

drivers/media/pci/cx88/cx88-video.c

@@ -1314,9 +1314,9 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32));
+	if (err) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
-		err = -EIO;
 		goto fail_core;
 	}
 	dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);

drivers/media/pci/netup_unidvb/netup_unidvb_core.c

@@ -810,7 +810,7 @@ static int netup_unidvb_initdev(struct pci_dev *pci_dev,
 		"%s(): board vendor 0x%x, revision 0x%x\n",
 		__func__, board_vendor, board_revision);
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+	if (pci_set_dma_mask(pci_dev, 0xffffffff) < 0) {
 		dev_err(&pci_dev->dev,
 			"%s(): 32bit PCI DMA is not supported\n", __func__);
 		goto pci_detect_err;

drivers/media/pci/saa7134/saa7134-core.c

@@ -951,9 +951,9 @@ static int saa7134_initdev(struct pci_dev *pci_dev,
 	       pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
+	if (err) {
 		pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
-		err = -EIO;
 		goto fail1;
 	}
 

drivers/media/pci/saa7164/saa7164-core.c

@@ -1264,9 +1264,9 @@ static int saa7164_initdev(struct pci_dev *pci_dev,
 
 	pci_set_master(pci_dev);
 	/* TODO */
-	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
+	err = pci_set_dma_mask(pci_dev, 0xffffffff);
+	if (err) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
-		err = -EIO;
 		goto fail_irq;
 	}
 

drivers/media/pci/tw68/tw68-core.c

@@ -257,9 +257,9 @@ static int tw68_initdev(struct pci_dev *pci_dev,
 		dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 		dev->pci_lat, (u64)pci_resource_start(pci_dev, 0));
 	pci_set_master(pci_dev);
-	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
+	err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
+	if (err) {
 		pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
-		err = -EIO;
 		goto fail1;
 	}